https://puma.ub.uni-stuttgart.de/user/asteroidguyPUMA RSS feed for /user/asteroidguy2026-04-12T09:49:03+02:00https://puma.ub.uni-stuttgart.de/bibtex/29a6086eb0b83688b27e3016b60b0f3e9/asteroidguyasteroidguy2025-12-15T18:18:21+01:00SOFIA imported myown <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Bastian Knieling" itemprop="url" href="/person/18a31ef0ec16c1fb74451a1f85d2cc0d6/author/0"><span itemprop="name">B. Knieling</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Karsten Schindler" itemprop="url" href="/person/18a31ef0ec16c1fb74451a1f85d2cc0d6/author/1"><span itemprop="name">K. Schindler</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Amanda A. Sickafoose" itemprop="url" href="/person/18a31ef0ec16c1fb74451a1f85d2cc0d6/author/2"><span itemprop="name">A. Sickafoose</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Michael J. Person" itemprop="url" href="/person/18a31ef0ec16c1fb74451a1f85d2cc0d6/author/3"><span itemprop="name">M. Person</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Stephen E. Levine" itemprop="url" href="/person/18a31ef0ec16c1fb74451a1f85d2cc0d6/author/4"><span itemprop="name">S. Levine</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Alfred Krabbe" itemprop="url" href="/person/18a31ef0ec16c1fb74451a1f85d2cc0d6/author/5"><span itemprop="name">A. Krabbe</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">The Planetary Science Journal</span>, </em> </span>(<em><span>Apr 1, 2024<meta content="Apr 1, 2024" itemprop="datePublished"/></span></em>)</span>Mon Dec 15 18:18:21 CET 2025The Planetary Science Journal04Stellar Occultations in the Era of Data Mining and Modern Regression Models: Using Gaussian Processes to Analyze Light Curves and Improve Predictions2024SOFIA imported myown 01https://puma.ub.uni-stuttgart.de/bibtex/29fff435aa622990a61210bdaa831be64/asteroidguyasteroidguy2025-12-15T18:18:21+01:00ATUS astronomy imported myown <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Amanda Sickafoose" itemprop="url" href="/person/1148372702427ee7863a751652703965b/author/0"><span itemprop="name">A. Sickafoose</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Elisabeth Adams" itemprop="url" href="/person/1148372702427ee7863a751652703965b/author/1"><span itemprop="name">E. Adams</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Bastian Knieling" itemprop="url" href="/person/1148372702427ee7863a751652703965b/author/2"><span itemprop="name">B. Knieling</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Stephen Levine" itemprop="url" href="/person/1148372702427ee7863a751652703965b/author/3"><span itemprop="name">S. Levine</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Michael Person" itemprop="url" href="/person/1148372702427ee7863a751652703965b/author/4"><span itemprop="name">M. Person</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Karsten Schindler" itemprop="url" href="/person/1148372702427ee7863a751652703965b/author/5"><span itemprop="name">K. Schindler</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Carlos Zuluaga" itemprop="url" href="/person/1148372702427ee7863a751652703965b/author/6"><span itemprop="name">C. Zuluaga</span></a></span></span>. </span><span class="additional-entrytype-information">(<em><span>August 2024<meta content="August 2024" itemprop="datePublished"/></span></em>)</span>Mon Dec 15 18:18:21 CET 2025IAU General Assembly08Stellar Occultations by Bodies in the Outer Solar System2024ATUS astronomy imported myown Stellar occultations are one of the most accurate, ground-based methods by which to assess physical characteristics of bodies in the outer Solar System. For example, in the trans-Neptunian region, occultation data have been used to determine object sizes and shapes at km-level accuracy, detect or place limits on microbar-level atmospheres, and discover and study rings down to km-level widths. Particularly compelling targets over the next few years include Pluto (which its thin, evolving, global atmosphere) and the trans-Neptunian objects and Centaurs for which rings have been proposed (Chariklo, Chiron, Haumea, and Quaoar). We will present recent results from stellar occultations by bodies in the outer Solar System, and we will consider the implications of large discovery surveys on future occultation efforts as well as how the technique can be used to increase their science return....https://puma.ub.uni-stuttgart.de/bibtex/2865ef5b00fbdd3c82c9750ce6653a805/asteroidguyasteroidguy2025-12-15T18:18:21+01:00ATUS SOFIA astronomy imported myown <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="K. Schindler" itemprop="url" href="/person/1f835d4bfeb603bb750b040984548f31b/author/0"><span itemprop="name">K. Schindler</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="A. S. Bosh" itemprop="url" href="/person/1f835d4bfeb603bb750b040984548f31b/author/1"><span itemprop="name">A. Bosh</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="S. E. Levine" itemprop="url" href="/person/1f835d4bfeb603bb750b040984548f31b/author/2"><span itemprop="name">S. Levine</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="M. J. Person" itemprop="url" href="/person/1f835d4bfeb603bb750b040984548f31b/author/3"><span itemprop="name">M. Person</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="J. Wolf" itemprop="url" href="/person/1f835d4bfeb603bb750b040984548f31b/author/4"><span itemprop="name">J. Wolf</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="C. Zuluaga" itemprop="url" href="/person/1f835d4bfeb603bb750b040984548f31b/author/5"><span itemprop="name">C. Zuluaga</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="A. Krabbe" itemprop="url" href="/person/1f835d4bfeb603bb750b040984548f31b/author/6"><span itemprop="name">A. Krabbe</span></a></span></span>. </span><span class="additional-entrytype-information">(<em><span>December 2019<meta content="December 2019" itemprop="datePublished"/></span></em>)</span>Mon Dec 15 18:18:21 CET 2025AGU Fall Meeting Abstracts12Results from a stellar occultation by KBO Varda2019ATUS SOFIA astronomy imported myown We present results obtained from a stellar occultation by the classical Kuiper belt object (174567) Varda on 10 September 2018. Varda is a known binary system and among the largest TNOs known today, but has not been studied during an occultation before. Among our collaborators, 24 stations were able to acquire data at the time of the event, of which 15 obtained a clear detection, making this the best-sampled occultation of a TNO to date. As potential stellar duplicity could cause a significant shift of the ground path, we studied the target star in advance through speckle imaging with 'Alopeke at Gemini North. The reconstructed shape is an ellipsoid, which supports Varda's status as a dwarf planet candidate. Albeit slightly smaller, the calculated size is in agreement with the radiometric diameter based on Herschel/PACS FIR measurements. Post-event analysis of the dataset obtained at DCT revealed a faint, unresolved companion or background star very close to the target, which was well under the detection limit of our speckle imager data, but had practically no effect on the predicted path. No atmosphere has been detected. The occultation helped to constrain size and albedo, which in turn helps to better constrain Varda's density....https://puma.ub.uni-stuttgart.de/bibtex/206024ecc3d7d05c2b9855e8e28774edd/asteroidguyasteroidguy2025-12-15T18:18:21+01:00astronomy imported myown <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="M. Bhatt" itemprop="url" href="/person/175eaaa6ca830947c2c20bbaab9ee34dd/author/0"><span itemprop="name">M. Bhatt</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="V. Reddy" itemprop="url" href="/person/175eaaa6ca830947c2c20bbaab9ee34dd/author/1"><span itemprop="name">V. Reddy</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="K. Schindler" itemprop="url" href="/person/175eaaa6ca830947c2c20bbaab9ee34dd/author/2"><span itemprop="name">K. Schindler</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="E. Cloutis" itemprop="url" href="/person/175eaaa6ca830947c2c20bbaab9ee34dd/author/3"><span itemprop="name">E. Cloutis</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="A. Bhardwaj" itemprop="url" href="/person/175eaaa6ca830947c2c20bbaab9ee34dd/author/4"><span itemprop="name">A. Bhardwaj</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="L. L. Corre" itemprop="url" href="/person/175eaaa6ca830947c2c20bbaab9ee34dd/author/5"><span itemprop="name">L. Corre</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="P. Mann" itemprop="url" href="/person/175eaaa6ca830947c2c20bbaab9ee34dd/author/6"><span itemprop="name">P. Mann</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">Astronomy and Astrophysics</span>, </em> </span>(<em><span>December 2017<meta content="December 2017" itemprop="datePublished"/></span></em>)</span>Mon Dec 15 18:18:21 CET 2025Astronomy and Astrophysics12Composition of Jupiter irregular satellites sheds light on their origin2017astronomy imported myown Context. Irregular satellites of Jupiter with their highly eccentric, inclined and distant orbits suggest that their capture took place after the giant planet migration. <BR /> Aims: We aim to improve our understanding of the surface composition of irregular satellites of Jupiter to gain insight into a narrow time window when our solar system was forming. <BR /> Methods: We observed three Jovian irregular satellites, Himalia (JVI), Elara (JVII), and Carme (JXI), using a medium-resolution 0.8-5.5 μm spectrograph, SpeX on the NASA Infrared Telescope Facility (IRTF). Using a linear spectral unmixing model we have constrained the major mineral phases on the surface of these three bodies. <BR /> Results: Our results confirm that the surface of Himalia (JVI), Elara (JVII), and Carme (JXI) are dominated by opaque materials such as those seen in carbonaceous chondrite meteorites. Our spectral modeling of NIR spectra of Himalia and Elara confirm that their surface composition is the same and magnetite is the dominant mineral. A comparison of the spectral shape of Himalia with the two large main C-type asteroids, Themis (D 176 km) and Europa (D 352 km), suggests surface composition similar to Europa. The NIR spectrum of Carme exhibits blue slope up to 1.5 μm and is spectrally distinct from those of Himalia and Elara. Our model suggests that it is compositionally similar to amorphous carbon. <BR /> Conclusions: Himalia and Elara are compositionally similar but differ significantly from Carme. These results support the hypotheses that the Jupiter's irregular satellites are captured bodies that were subject to further breakup events and clustered as families based on their similar physical and surface compositions.https://puma.ub.uni-stuttgart.de/bibtex/2b2b74ebfcc907e679b8a47e9b04a1bbb/asteroidguyasteroidguy2025-12-15T18:18:21+01:00SDC imported myown <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Bernhard Schulz" itemprop="url" href="/person/1a5a9eccdff62e36b3feb03130b0f4170/author/0"><span itemprop="name">B. Schulz</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Aaron Bryant" itemprop="url" href="/person/1a5a9eccdff62e36b3feb03130b0f4170/author/1"><span itemprop="name">A. Bryant</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Christian Fischer" itemprop="url" href="/person/1a5a9eccdff62e36b3feb03130b0f4170/author/2"><span itemprop="name">C. Fischer</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Nadine Fischer" itemprop="url" href="/person/1a5a9eccdff62e36b3feb03130b0f4170/author/3"><span itemprop="name">N. Fischer</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Benjamin Greiner" itemprop="url" href="/person/1a5a9eccdff62e36b3feb03130b0f4170/author/4"><span itemprop="name">B. Greiner</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Michael Hütwohl" itemprop="url" href="/person/1a5a9eccdff62e36b3feb03130b0f4170/author/5"><span itemprop="name">M. Hütwohl</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Christof Iserlohe" itemprop="url" href="/person/1a5a9eccdff62e36b3feb03130b0f4170/author/6"><span itemprop="name">C. Iserlohe</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Thomas Keilig" itemprop="url" href="/person/1a5a9eccdff62e36b3feb03130b0f4170/author/7"><span itemprop="name">T. Keilig</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Alfred Krabbe" itemprop="url" href="/person/1a5a9eccdff62e36b3feb03130b0f4170/author/8"><span itemprop="name">A. Krabbe</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Bastian Knieling" itemprop="url" href="/person/1a5a9eccdff62e36b3feb03130b0f4170/author/9"><span itemprop="name">B. Knieling</span></a></span></span> and 4 other author(s). </span><span class="additional-entrytype-information">(<em><span>January 2025<meta content="January 2025" itemprop="datePublished"/></span></em>)</span>Mon Dec 15 18:18:21 CET 2025American Astronomical Society Meeting Abstracts01Helping Bridge the FIR-Data-Drought with the SOFIA Data Center (SDC)2025SDC imported myown During 783 scientific flights, SOFIA, the Stratospheric Observatory for Infrared Astronomy of the space agencies of Germany and the United States, DLR and NASA, respectively, collected a considerable volume of scientific data, that is available through the Infrared Science Archive at IPAC. After the end of flight operations in September 2022, with only one year of ramp-down time for Science Mission Operations remaining, only a limited data reprocessing of Cycles 5 to 9 could be achieved. In order to complete the job and ensure a full exploitation of the considerable investment in SOFIA, the Institute of Spaceflight Systems of the University of Stuttgart, the home of the German SOFIA Institute (DSI), submitted a proposal to DLR to create a SOFIA Data Center (SDC) with a more comprehensive plan for a five-year post operational phase. The proposal was accepted and funded and the project started in July 2024. This contribution will make a brief assessment of the history and outlook of Far-Infrared (FIR) astronomical observatories, and discuss the SDC's plans to perform a more comprehensive reprocessing of all stored SOFIA data. We will use upgraded data processing pipelines, with improved pointing reconstruction, derived from guide camera imagery and new corrections for atmospheric water vapor and instrumental effects. The science data - re-ordered by astronomical criteria - will be stored along with the technical and operational engineering data of the telescope in a searchable, VO-compatible, publicly accessible archive. The newly formed SDC draws from the experience of the former DSI and seeks collaboration with scientists and engineers, that still hold knowledge of SOFIA operations and instrumentation. Once the SDC work is complete after 5 years, the archive will be transferred to the new German Astrophysics Center (DZA) as a long-term home. We expect to work with the entire astronomical community to promote the exploitation and publication of valuable Mid- and Far-Infrared data, establish a powerful scientific resource for the post-mission phase, and bridge the gap until the next space- or stratospheric FIR observatory becomes available....https://puma.ub.uni-stuttgart.de/bibtex/29a1f4889915df2df5f014ffda59085bb/asteroidguyasteroidguy2025-12-15T18:18:21+01:00ATUS astronomy imported myown <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Amanda Sickafoose" itemprop="url" href="/person/189b0dfdf7b284bb2b01a83cfef06ff1a/author/0"><span itemprop="name">A. Sickafoose</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Michael Person" itemprop="url" href="/person/189b0dfdf7b284bb2b01a83cfef06ff1a/author/1"><span itemprop="name">M. Person</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Carlos Zuluaga" itemprop="url" href="/person/189b0dfdf7b284bb2b01a83cfef06ff1a/author/2"><span itemprop="name">C. Zuluaga</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Amanda Bosh" itemprop="url" href="/person/189b0dfdf7b284bb2b01a83cfef06ff1a/author/3"><span itemprop="name">A. Bosh</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Stephen Levine" itemprop="url" href="/person/189b0dfdf7b284bb2b01a83cfef06ff1a/author/4"><span itemprop="name">S. Levine</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Tim Brothers" itemprop="url" href="/person/189b0dfdf7b284bb2b01a83cfef06ff1a/author/5"><span itemprop="name">T. Brothers</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Bastian Knieling" itemprop="url" href="/person/189b0dfdf7b284bb2b01a83cfef06ff1a/author/6"><span itemprop="name">B. Knieling</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Tim Lister" itemprop="url" href="/person/189b0dfdf7b284bb2b01a83cfef06ff1a/author/7"><span itemprop="name">T. Lister</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="David Osip" itemprop="url" href="/person/189b0dfdf7b284bb2b01a83cfef06ff1a/author/8"><span itemprop="name">D. Osip</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Patricio Rojo" itemprop="url" href="/person/189b0dfdf7b284bb2b01a83cfef06ff1a/author/9"><span itemprop="name">P. Rojo</span></a></span></span> and 7 other author(s). </span><span class="additional-entrytype-information">(<em><span>October 2023<meta content="October 2023" itemprop="datePublished"/></span></em>)</span>Mon Dec 15 18:18:21 CET 2025AAS/Division for Planetary Sciences Meeting Abstracts10Pluto's Atmosphere Persists2023ATUS astronomy imported myown Pluto has a tenuous atmosphere with microbar-level surface pressure, composed primarily of nitrogen and containing a layered haze made of organic materials. An eccentric orbit combined with high obliquity leads to significant changes in solar insolation at different latitudes throughout the Plutonian year. Because the atmosphere is supported through vapor-pressure equilibrium with the surface ices, changes in surface conditions are intimately linked with the properties of the atmosphere. Thermophysical, volatile-transport models have been employed to anticipate Pluto's atmospheric evolution: predictions include atmospheric contraction or even collapse over the coming decades as well as an atmosphere that remains through the entire 248-yr revolution around the Sun (e.g. Young, 2013, ApJ Lett., 766, L22; Hansen et al. 2015, Icarus, 246, 183; Bertrand et al. 2018, Icarus, 309, 277; Johnson et al. 2021, Icarus, 356, id.114070). Previous work reported that Pluto's atmospheric pressure has been monotonically increasing since its definitive discovery in 1988 through 2016 (Meza et al. 2019, A&amp;A, 625, id.A136) and then that the atmosphere had possibly begun freezing out in 2018-2019 (Arimatsu et al. 2020, A&amp;A 638, L5; Young et al. 2021, AAS DPS Meeting #53, id.307.06). Observations of an occultation in 2020 did not show a pressure drop and were interpreted to be either a continued pressure increase (Poro et al. 2021, A&amp;A, 652, L7) or a plateau phase (Sicardy et al. 2021, ApJ Lett, 923, L31). Here, we report results from nine successfully-observed stellar occultations by Pluto between 2017 August and 2022 August. The stellar magnitudes ranged from G=12.91 to 17.76 with geocentric relative velocities between 1.7 and 24.3 km/s. Four of these events had successful chords from multiple sites, while five events were from single sites. Our results indicate that Pluto's atmospheric pressure has been roughly holding steady since the New Horizons spacecraft flyby in 2015 and does not show any signs of collapse as of August 2022....https://puma.ub.uni-stuttgart.de/bibtex/2dfebe353b8c5126edd9d738c926da6f0/asteroidguyasteroidguy2025-12-15T18:18:21+01:00ATUS astronomy imported myown <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Marvin Rothmeier" itemprop="url" href="/person/1f9b7e3c0c5b5df293015240a9bbfc5ff/author/0"><span itemprop="name">M. Rothmeier</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Elisabeth R. Adams" itemprop="url" href="/person/1f9b7e3c0c5b5df293015240a9bbfc5ff/author/1"><span itemprop="name">E. Adams</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Karsten Schindler" itemprop="url" href="/person/1f9b7e3c0c5b5df293015240a9bbfc5ff/author/2"><span itemprop="name">K. Schindler</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="André Beck" itemprop="url" href="/person/1f9b7e3c0c5b5df293015240a9bbfc5ff/author/3"><span itemprop="name">A. Beck</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Brian Jackson" itemprop="url" href="/person/1f9b7e3c0c5b5df293015240a9bbfc5ff/author/4"><span itemprop="name">B. Jackson</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Jeffrey P. Morgenthaler" itemprop="url" href="/person/1f9b7e3c0c5b5df293015240a9bbfc5ff/author/5"><span itemprop="name">J. Morgenthaler</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Amanda A. Sickafoose" itemprop="url" href="/person/1f9b7e3c0c5b5df293015240a9bbfc5ff/author/6"><span itemprop="name">A. Sickafoose</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Malia Barker" itemprop="url" href="/person/1f9b7e3c0c5b5df293015240a9bbfc5ff/author/7"><span itemprop="name">M. Barker</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Luigi Mancini" itemprop="url" href="/person/1f9b7e3c0c5b5df293015240a9bbfc5ff/author/8"><span itemprop="name">L. Mancini</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="John Southworth" itemprop="url" href="/person/1f9b7e3c0c5b5df293015240a9bbfc5ff/author/9"><span itemprop="name">J. Southworth</span></a></span></span> and 2 other author(s). </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">The Planetary Science Journal</span>, </em> </span>(<em><span>Dec 1, 2025<meta content="Dec 1, 2025" itemprop="datePublished"/></span></em>)</span>Mon Dec 15 18:18:21 CET 2025The Planetary Science Journal12Doomed Worlds. II. Reassessing Suggestions of Orbital Decay for TrES-5 b2025ATUS astronomy imported myown 01https://puma.ub.uni-stuttgart.de/bibtex/2c5d224f36cba7108942a4def48bb5d5d/asteroidguyasteroidguy2025-12-15T18:18:21+01:00imported <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Amanda A. Sickafoose" itemprop="url" href="/person/19ae514134f4e81c19ce0e442371efb93/author/0"><span itemprop="name">A. Sickafoose</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Stephen E. Levine" itemprop="url" href="/person/19ae514134f4e81c19ce0e442371efb93/author/1"><span itemprop="name">S. Levine</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Amanda S. Bosh" itemprop="url" href="/person/19ae514134f4e81c19ce0e442371efb93/author/2"><span itemprop="name">A. Bosh</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Michael J. Person" itemprop="url" href="/person/19ae514134f4e81c19ce0e442371efb93/author/3"><span itemprop="name">M. Person</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Carlos A. Zuluaga" itemprop="url" href="/person/19ae514134f4e81c19ce0e442371efb93/author/4"><span itemprop="name">C. Zuluaga</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Bastian Knieling" itemprop="url" href="/person/19ae514134f4e81c19ce0e442371efb93/author/5"><span itemprop="name">B. Knieling</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Mark C. Lewis" itemprop="url" href="/person/19ae514134f4e81c19ce0e442371efb93/author/6"><span itemprop="name">M. Lewis</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Karsten Schindler" itemprop="url" href="/person/19ae514134f4e81c19ce0e442371efb93/author/7"><span itemprop="name">K. Schindler</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">The Planetary Science Journal</span>, </em> </span>(<em><span>November 2023<meta content="November 2023" itemprop="datePublished"/></span></em>)</span>Mon Dec 15 18:18:21 CET 2025The Planetary Science Journal11Material around the Centaur (2060) Chiron from the 2018 November 28 UT Stellar Occultation2023imported A stellar occultation of Gaia DR3 2646598228351156352 by the Centaur (2060) Chiron was observed from the South African Astronomical Observatory on 2018 November 28 UT. Here we present a positive detection of material surrounding Chiron from the 74-inch telescope for this event. Additionally, a global atmosphere is ruled out at the tens of microbars level for several possible atmospheric compositions. There are multiple 3σ drops in the 74-inch light curve: three during immersion and two during emersion. Occulting material is located between 242 and 270 km from the center of the nucleus in the sky plane. Assuming the ring-plane orientation proposed for Chiron from the 2011 occultation, the flux drops are located at 352, 344, and 316 km (immersion) and 357 and 364 km (emersion) from the center, with normal optical depths of 0.26, 0.36, and 0.22 (immersion) and 0.26 and 0.18 (emersion) and equivalent widths between 0.7 and 1.3 km. This detection is similar to the previously proposed two-ring system and is located within the error bars of that ring-pole plane; however, the normal optical depths are less than half of the previous values, and three features are detected on immersion. These results suggest that the properties of the surrounding material have evolved between the 2011, 2018, and 2022 observations....https://puma.ub.uni-stuttgart.de/bibtex/2ddf8fc8a9d7df3c0b78fce0f0d02dd80/asteroidguyasteroidguy2019-11-27T10:00:03+01:00ATUS astronomy myown <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="A. A. Sickafoose" itemprop="url" href="/person/117fdbaf402bfb1b7478e0a06dda75dff/author/0"><span itemprop="name">A. Sickafoose</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="A. S. Bosh" itemprop="url" href="/person/117fdbaf402bfb1b7478e0a06dda75dff/author/1"><span itemprop="name">A. Bosh</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="S. E. Levine" itemprop="url" href="/person/117fdbaf402bfb1b7478e0a06dda75dff/author/2"><span itemprop="name">S. Levine</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="M. J. Person" itemprop="url" href="/person/117fdbaf402bfb1b7478e0a06dda75dff/author/3"><span itemprop="name">M. Person</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="K. Schindler" itemprop="url" href="/person/117fdbaf402bfb1b7478e0a06dda75dff/author/4"><span itemprop="name">K. Schindler</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="C. A. Zuluaga" itemprop="url" href="/person/117fdbaf402bfb1b7478e0a06dda75dff/author/5"><span itemprop="name">C. Zuluaga</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">Pluto System After New Horizons, held 14-18 July, 2019 in Laurel, Maryland</span>, </em> </span>(<em><span>July 2019<meta content="July 2019" itemprop="datePublished"/></span></em>)</span>Wed Nov 27 10:00:03 CET 2019Pluto System After New Horizons, held 14-18 July, 2019 in Laurel, Marylandjul7026{Stellar Occultations by Pluto: 2017--2018}LPI Contribution 21332019ATUS astronomy myown https://puma.ub.uni-stuttgart.de/bibtex/23176b0c6bac24bf8d47efc2014b2a05d/asteroidguyasteroidguy2018-10-30T19:39:47+01:00SOFIA astronomy myown <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Michael J. Person" itemprop="url" href="/person/1549ebda5e041708d650f1025f497a016/author/0"><span itemprop="name">M. Person</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Karsten Schindler" itemprop="url" href="/person/1549ebda5e041708d650f1025f497a016/author/1"><span itemprop="name">K. Schindler</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Amanda S. Bosh" itemprop="url" href="/person/1549ebda5e041708d650f1025f497a016/author/2"><span itemprop="name">A. Bosh</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Juergen Wolf" itemprop="url" href="/person/1549ebda5e041708d650f1025f497a016/author/3"><span itemprop="name">J. Wolf</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Stephen E. Levine" itemprop="url" href="/person/1549ebda5e041708d650f1025f497a016/author/4"><span itemprop="name">S. Levine</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Carlos A. Zuluaga" itemprop="url" href="/person/1549ebda5e041708d650f1025f497a016/author/5"><span itemprop="name">C. Zuluaga</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Enrico Pfueller" itemprop="url" href="/person/1549ebda5e041708d650f1025f497a016/author/6"><span itemprop="name">E. Pfueller</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Daniel Caton" itemprop="url" href="/person/1549ebda5e041708d650f1025f497a016/author/7"><span itemprop="name">D. Caton</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Alexander Patton" itemprop="url" href="/person/1549ebda5e041708d650f1025f497a016/author/8"><span itemprop="name">A. Patton</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Jay Pasachoff" itemprop="url" href="/person/1549ebda5e041708d650f1025f497a016/author/9"><span itemprop="name">J. Pasachoff</span></a></span></span> and 6 other author(s). </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"> </span>(<em><span>October 2018<meta content="October 2018" itemprop="datePublished"/></span></em>)</span>Tue Oct 30 19:39:47 CET 2018AAS/Division for Planetary Sciences Meeting Abstractsoct416.10{Airborne and Ground Observations of the Stellar Occultation by Triton on 5 October 2017}502018SOFIA astronomy myown https://puma.ub.uni-stuttgart.de/bibtex/25b8cba15e86288269b9fac8d9fd37bb9/asteroidguyasteroidguy2018-10-30T19:29:39+01:00ATUS astronomy myown <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="A. S. Bosh" itemprop="url" href="/person/1618e2bb668d1cc18561b223efabe0f5d/author/0"><span itemprop="name">A. Bosh</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="A. A. Sickafoose" itemprop="url" href="/person/1618e2bb668d1cc18561b223efabe0f5d/author/1"><span itemprop="name">A. Sickafoose</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="S. E. Levine" itemprop="url" href="/person/1618e2bb668d1cc18561b223efabe0f5d/author/2"><span itemprop="name">S. Levine</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="C. A. Zuluaga" itemprop="url" href="/person/1618e2bb668d1cc18561b223efabe0f5d/author/3"><span itemprop="name">C. Zuluaga</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="A. Genade" itemprop="url" href="/person/1618e2bb668d1cc18561b223efabe0f5d/author/4"><span itemprop="name">A. Genade</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="K. Schindler" itemprop="url" href="/person/1618e2bb668d1cc18561b223efabe0f5d/author/5"><span itemprop="name">K. Schindler</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="T. A. Lister" itemprop="url" href="/person/1618e2bb668d1cc18561b223efabe0f5d/author/6"><span itemprop="name">T. Lister</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="M. J. Person" itemprop="url" href="/person/1618e2bb668d1cc18561b223efabe0f5d/author/7"><span itemprop="name">M. Person</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"> </span>(<em><span>October 2018<meta content="October 2018" itemprop="datePublished"/></span></em>)</span>Tue Oct 30 19:29:39 CET 2018AAS/Division for Planetary Sciences Meeting Abstractsoct311.01{The 2017 occultation by Vanth: a revised analysis}502018ATUS astronomy myown https://puma.ub.uni-stuttgart.de/bibtex/2f4794e0fa605f7c6e3ef80a40ccdff1b/asteroidguyasteroidguy2018-10-30T19:19:32+01:00ATUS astronomy myown <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="A. A. Sickafoose" itemprop="url" href="/person/1066b8db6494602f04a30696f504a070a/author/0"><span itemprop="name">A. Sickafoose</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="S. E. Levine" itemprop="url" href="/person/1066b8db6494602f04a30696f504a070a/author/1"><span itemprop="name">S. Levine</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="A. S. Bosh" itemprop="url" href="/person/1066b8db6494602f04a30696f504a070a/author/2"><span itemprop="name">A. Bosh</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="C. A. Zuluaga" itemprop="url" href="/person/1066b8db6494602f04a30696f504a070a/author/3"><span itemprop="name">C. Zuluaga</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="M. J. Person" itemprop="url" href="/person/1066b8db6494602f04a30696f504a070a/author/4"><span itemprop="name">M. Person</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="K. Schindler" itemprop="url" href="/person/1066b8db6494602f04a30696f504a070a/author/5"><span itemprop="name">K. Schindler</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"> </span>(<em><span>October 2018<meta content="October 2018" itemprop="datePublished"/></span></em>)</span>Tue Oct 30 19:19:32 CET 2018AAS/Division for Planetary Sciences Meeting Abstractsoct502.02{Pluto's atmosphere after New Horizons: results from stellar occultations in 2017 and 2018}502018ATUS astronomy myown https://puma.ub.uni-stuttgart.de/bibtex/22467603d3154bf55e75f0773973c4eb6/asteroidguyasteroidguy2018-10-22T08:12:12+02:00ATUS astronomy myown <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="A. A. Sickafoose" itemprop="url" href="/person/186e34e622381c921e66b20b861af8bd9/author/0"><span itemprop="name">A. Sickafoose</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="A. S. Bosh" itemprop="url" href="/person/186e34e622381c921e66b20b861af8bd9/author/1"><span itemprop="name">A. Bosh</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="S. E. Levine" itemprop="url" href="/person/186e34e622381c921e66b20b861af8bd9/author/2"><span itemprop="name">S. Levine</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="C. A. Zuluaga" itemprop="url" href="/person/186e34e622381c921e66b20b861af8bd9/author/3"><span itemprop="name">C. Zuluaga</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="A. Genade" itemprop="url" href="/person/186e34e622381c921e66b20b861af8bd9/author/4"><span itemprop="name">A. Genade</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="K. Schindler" itemprop="url" href="/person/186e34e622381c921e66b20b861af8bd9/author/5"><span itemprop="name">K. Schindler</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="T. A. Lister" itemprop="url" href="/person/186e34e622381c921e66b20b861af8bd9/author/6"><span itemprop="name">T. Lister</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="M. J. Person" itemprop="url" href="/person/186e34e622381c921e66b20b861af8bd9/author/7"><span itemprop="name">M. Person</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">Icarus</span>, </em> </span>(<em><span>February 2019<meta content="February 2019" itemprop="datePublished"/></span></em>)</span>Mon Oct 22 08:12:12 CEST 2018Icarusfeb657-668{A stellar occultation by Vanth, a satellite of (90482) Orcus}3192019ATUS astronomy myown https://puma.ub.uni-stuttgart.de/bibtex/20d1867933896c048069ff6b741cb0bfd/asteroidguyasteroidguy2018-07-18T04:01:38+02:00SOFIA myown <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Enrico Pfüller" itemprop="url" href="/person/15256c3dcc35041f8c06abac9a0903056/author/0"><span itemprop="name">E. Pfüller</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Jürgen Wolf" itemprop="url" href="/person/15256c3dcc35041f8c06abac9a0903056/author/1"><span itemprop="name">J. Wolf</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Karsten Schindler" itemprop="url" href="/person/15256c3dcc35041f8c06abac9a0903056/author/2"><span itemprop="name">K. Schindler</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Michael J. Person" itemprop="url" href="/person/15256c3dcc35041f8c06abac9a0903056/author/3"><span itemprop="name">M. Person</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">Proc. SPIE</span>, </em> </span>(<em><span>2018<meta content="2018" itemprop="datePublished"/></span></em>)</span>Wed Jul 18 04:01:38 CEST 2018Proc. SPIE107022V{Adding a second spectral channel to the SOFIA FPI+ science instrument}107022018SOFIA myown The Stratospheric Observatory for Infrared Astronomy (SOFIA) is a heavily modified Boeing 747SP aircraft, accommodating a 2.7 meter infrared telescope. This airborne observation platform operates at flight altitudes of up to 13.7 km (45,000 ft) and therefore allows a nearly unobstructed view of the visible and infrared universe at wavelengths between 0.3 µm and 1600 µm. The Focal Plane Imager (FPI+) is SOFIA’s main tracking camera. It uses a commercial, off-the-shelf camera with a thermoelectrically cooled EM-CCD. The back-illuminated sensor has a peak quantum efficiency greater than 95% at 550 nm and the dark current is as low as 0.01 e-/pix/sec. Since 2015, the FPI+ has been available to the community as a Facility Science Instrument, and can be used to observe stellar occultations by solar system objects such as dwarf planets, moons, asteroids, and comets, and transits of extra-solar planets. To date, SOFIA has conducted multi-channel observations of occultations, e.g. the occultation by Pluto in June of 2015 or the occultation by Triton in October 2017, using three instruments, HIPO and FLITECAM at the main instrument flange of the telescope, and the FPI+. This multi-wavelength sampling is important for enabling discrimination of particle sizes and constituents of hazes in the atmosphere of bodies such as Pluto and Triton, and the coma material of comets. Multi-wavelength observations also serve to allow us to place constraints on the chemical compositions of these formations. After the retirement of the two other instruments, the FPI+ is now SOFIA’s only remaining observing tool for occultations. In order to preserve some of the multi-color observing capability of the platform, we here discuss the addition of a second spectral channel to the FPI+. In a first upgrade step, a beamsplitter will split the incoming light and send it to two EMCCD cameras, one working in the ”blue”, e.g. SLOAN g’ band, and the other working in the ”red”, e.g. SLOAN i’ or z’ band. In a second upgrade step, the ”red” channel could be equipped with a NIR camera in order to provide a wider wavelength separation of the two bands. This will however require a modified dichroic coating on the tertiary (Nasmyth) mirror of the SOFIA telescope. This paper presents a preliminary design study of the opto-mechanical configuration of the dual channel FPI+.Copyright 2018 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.https://puma.ub.uni-stuttgart.de/bibtex/22d9561bf5925d1e85312b42f4a639a93/asteroidguyasteroidguy2017-10-23T07:56:29+02:00ATUS astronomy myown <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="A. A. Sickafoose" itemprop="url" href="/person/18a47351824a7754393583539078d3aa1/author/0"><span itemprop="name">A. Sickafoose</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="A. S. Bosh" itemprop="url" href="/person/18a47351824a7754393583539078d3aa1/author/1"><span itemprop="name">A. Bosh</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="S. E. Levine" itemprop="url" href="/person/18a47351824a7754393583539078d3aa1/author/2"><span itemprop="name">S. Levine</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="C. A. Zuluaga" itemprop="url" href="/person/18a47351824a7754393583539078d3aa1/author/3"><span itemprop="name">C. Zuluaga</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="A. Genade" itemprop="url" href="/person/18a47351824a7754393583539078d3aa1/author/4"><span itemprop="name">A. Genade</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="K. Schindler" itemprop="url" href="/person/18a47351824a7754393583539078d3aa1/author/5"><span itemprop="name">K. Schindler</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="T. A. Lister" itemprop="url" href="/person/18a47351824a7754393583539078d3aa1/author/6"><span itemprop="name">T. Lister</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="M. J. Person" itemprop="url" href="/person/18a47351824a7754393583539078d3aa1/author/7"><span itemprop="name">M. Person</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"> </span>(<em><span>October 2017<meta content="October 2017" itemprop="datePublished"/></span></em>)</span>Mon Oct 23 07:56:29 CEST 2017AAS/Division for Planetary Sciences Meeting Abstractsoct216.02{A 2017 stellar occultation by Orcus/Vanth}492017ATUS astronomy myown https://puma.ub.uni-stuttgart.de/bibtex/24dfa6c805a91b4187a36e746616bd71f/asteroidguyasteroidguy2017-10-23T07:54:21+02:00ATUS astronomy myown <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="A. S. Bosh" itemprop="url" href="/person/1f19e63c9007fdfc20aec980e1a5d8401/author/0"><span itemprop="name">A. Bosh</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="C. A. Zuluaga" itemprop="url" href="/person/1f19e63c9007fdfc20aec980e1a5d8401/author/1"><span itemprop="name">C. Zuluaga</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="S. E. Levine" itemprop="url" href="/person/1f19e63c9007fdfc20aec980e1a5d8401/author/2"><span itemprop="name">S. Levine</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="A. A. Sickafoose" itemprop="url" href="/person/1f19e63c9007fdfc20aec980e1a5d8401/author/3"><span itemprop="name">A. Sickafoose</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="A. Genade" itemprop="url" href="/person/1f19e63c9007fdfc20aec980e1a5d8401/author/4"><span itemprop="name">A. Genade</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="K. Schindler" itemprop="url" href="/person/1f19e63c9007fdfc20aec980e1a5d8401/author/5"><span itemprop="name">K. Schindler</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="T. A. Lister" itemprop="url" href="/person/1f19e63c9007fdfc20aec980e1a5d8401/author/6"><span itemprop="name">T. Lister</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="M. J. Person" itemprop="url" href="/person/1f19e63c9007fdfc20aec980e1a5d8401/author/7"><span itemprop="name">M. Person</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"> </span>(<em><span>October 2017<meta content="October 2017" itemprop="datePublished"/></span></em>)</span>Mon Oct 23 07:54:21 CEST 2017AAS/Division for Planetary Sciences Meeting Abstractsoct216.01{Astrometry of the Orcus/Vanth occultation on UT 7 March 2017}492017ATUS astronomy myown https://puma.ub.uni-stuttgart.de/bibtex/2646f00cf1d510d7ba428007f5bb7b620/asteroidguyasteroidguy2017-06-01T10:51:42+02:00ATUS <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Klaus Zintz" itemprop="url" href="/person/131033b55e36de2d95b96a416ac5373a8/author/0"><span itemprop="name">K. Zintz</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">Stuttgarter Zeitung</span>, </em> </span>(<em><span>Nov 13, 2015<meta content="Nov 13, 2015" itemprop="datePublished"/></span></em>)<em>13 November 2015.</em></span>Thu Jun 01 10:51:42 CEST 2017Stuttgarter ZeitungNovember13 November 2015Stuttgarter Projekt Atus: Ein ferngesteuertes Teleskop für die Uni (Stuttgart's project Atus: A remotely controlled telescope for the university) 13 November 20152015ATUS 13https://puma.ub.uni-stuttgart.de/bibtex/2b946581e922f13dcc8cf820e03ccf103/asteroidguyasteroidguy2017-03-21T18:35:29+01:00ATUS astronomy myown <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="K. Schindler" itemprop="url" href="/person/1719d6db879ac4ff7cf1b67a758557375/author/0"><span itemprop="name">K. Schindler</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="J. Wolf" itemprop="url" href="/person/1719d6db879ac4ff7cf1b67a758557375/author/1"><span itemprop="name">J. Wolf</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="J. Bardecker" itemprop="url" href="/person/1719d6db879ac4ff7cf1b67a758557375/author/2"><span itemprop="name">J. Bardecker</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="A. Olsen" itemprop="url" href="/person/1719d6db879ac4ff7cf1b67a758557375/author/3"><span itemprop="name">A. Olsen</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="T. Müller" itemprop="url" href="/person/1719d6db879ac4ff7cf1b67a758557375/author/4"><span itemprop="name">T. Müller</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="C. Kiss" itemprop="url" href="/person/1719d6db879ac4ff7cf1b67a758557375/author/5"><span itemprop="name">C. Kiss</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="J. L. Ortiz" itemprop="url" href="/person/1719d6db879ac4ff7cf1b67a758557375/author/6"><span itemprop="name">J. Ortiz</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="F. Braga-Ribas" itemprop="url" href="/person/1719d6db879ac4ff7cf1b67a758557375/author/7"><span itemprop="name">F. Braga-Ribas</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="J. I. B. Camargo" itemprop="url" href="/person/1719d6db879ac4ff7cf1b67a758557375/author/8"><span itemprop="name">J. Camargo</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="D. Herald" itemprop="url" href="/person/1719d6db879ac4ff7cf1b67a758557375/author/9"><span itemprop="name">D. Herald</span></a></span></span> and 1 other author(s). </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">A&amp;A</span>, </em> </span>(<em><span>2017<meta content="2017" itemprop="datePublished"/></span></em>)</span>Tue Mar 21 18:35:29 CET 2017A\&AA12Results from a triple chord stellar occultation and far-infrared photometry of the trans-Neptunian object (229762) 2007 UK1266002017ATUS astronomy myown https://puma.ub.uni-stuttgart.de/bibtex/2f183c491f7fe57265268f11b97161b0d/asteroidguyasteroidguy2016-10-28T22:42:14+02:00myown <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="M. Hartl" itemprop="url" href="/person/1eb12859359453394eef2a37aa9fd3c70/author/0"><span itemprop="name">M. Hartl</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="H. Mosebach" itemprop="url" href="/person/1eb12859359453394eef2a37aa9fd3c70/author/1"><span itemprop="name">H. Mosebach</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="J. Schubert" itemprop="url" href="/person/1eb12859359453394eef2a37aa9fd3c70/author/2"><span itemprop="name">J. Schubert</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="H. Michaelis" itemprop="url" href="/person/1eb12859359453394eef2a37aa9fd3c70/author/3"><span itemprop="name">H. Michaelis</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="S. Mottola" itemprop="url" href="/person/1eb12859359453394eef2a37aa9fd3c70/author/4"><span itemprop="name">S. Mottola</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="E. Kührt" itemprop="url" href="/person/1eb12859359453394eef2a37aa9fd3c70/author/5"><span itemprop="name">E. Kührt</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="K. Schindler" itemprop="url" href="/person/1eb12859359453394eef2a37aa9fd3c70/author/6"><span itemprop="name">K. Schindler</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"> </span>(<em><span>October 2010<meta content="October 2010" itemprop="datePublished"/></span></em>)</span>Fri Oct 28 22:42:14 CEST 2016ICSO 2010 International Conference on Space Optics, held 4-8 October, 2010 in Rhodes, GreeceoctAsteroidFinder - The Space-Borne Telescope to Search for NEO Asteroids2010myown This paper presents the mission profile as well as the optical configuration of the space-borne AsteroidFinder telescope. Its main objective is to retrieve asteroids with orbits interior to the earth's orbit. The instrument requires high sensitivity to detect asteroids with a limiting magnitude of equal or larger than 18.5mag (V-Band) and astrometric accuracy of 1arcsec (1σ). This requires a telescope aperture greater than 400cm2, high image stability, detector with high quantum efficiency (peak > 90%) and very low noise, which is only limited by zodiacal background. The telescope will observe the sky between 30° and 60° in solar elongation. The telescope optics is based on a Cook type TMA. An effective 2°×2° field of view (FOV) is achieved by a fast F/3.4 telescope with near diffraction-limited performance. The absence of centre obscuration or spiders in combination with an accessible intermediate field plane and exit pupil allow for efficient stray light mitigation. Design drivers for the telescope are the required point spread function (PSF) values, an extremely efficient stray light suppression (due to the magnitude requirement mentioned above), the detector performance, and the overall optical and mechanical stability for all orientations of the satellite. To accommodate the passive thermal stabilization scheme and the necessary structural stability, the materials selection for the telescope main structure and the mirrors are of vital importance. A focal plane with four EMCCD detectors is envisaged. The EMCCD technology features shorter integration times, which is in favor regarding the pointing performance of the satellite. The launch of the mission is foreseen for the year 2013 with a subsequent mission lifetime of at least 1 year.https://puma.ub.uni-stuttgart.de/bibtex/2e2f20c2d01fe0d62106a8572c552f8ac/asteroidguyasteroidguy2016-10-28T22:38:38+02:00myown <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Karsten Schindler" itemprop="url" href="/person/17081a0faac23d1b1bcf14ae8715311f7/author/0"><span itemprop="name">K. Schindler</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Jürgen Wolf" itemprop="url" href="/person/17081a0faac23d1b1bcf14ae8715311f7/author/1"><span itemprop="name">J. Wolf</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Alfred Krabbe" itemprop="url" href="/person/17081a0faac23d1b1bcf14ae8715311f7/author/2"><span itemprop="name">A. Krabbe</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">Proc. SPIE</span>, </em> </span>(<em><span>2014<meta content="2014" itemprop="datePublished"/></span></em>)</span>Fri Oct 28 22:38:38 CEST 2016Proc. SPIE91450X-91450X-13Characterization of InGaAs-based cameras for astronomical applications using a new VIS-NIR-SWIR detector test bench 91452014myown A new test bench for detector and camera characterization in the visible and near-infrared spectral range between 350 -2500 nm has been setup at the Max Planck Institute for Solar System Research (MPS). The detector under study is illuminated by an integrating sphere that is fed by a Czerny-Turner monochromator with quasi-monochromatic light. A quartz tungsten halogen lamp is used as a light source for the monochromator. Si- and InGaAs-based photodiodes have been calibrated against secondary reference standards at PTB (Germany), NPL (UK) and NRC (Canada) for precise spectral flux measurements. The test bench allows measurements of fundamental detector properties such as linearity of response, conversion gain, full well capacity, quantum efficiency (QE), fixed pattern noise and pixel response non-uniformity. The article will focus on the commissioning of the test bench and subsequent performance evaluation and characterization of a commercial camera system with a 640 x 480 InGaAs-detector, sensitive between 900 to 1650 nm. The study aimed at the potential use of InGaAs cameras in ground-based and airborne astronomical observations or as target acquisition and tracking cameras in the NIR supporting infrared observations at longer wavelengths, e.g. on SOFIA. An intended future application of the test bench in combination with an appropriate test dewar is the characterization of focal plane assemblies for imaging spectrometers on spacecraft missions, such as the VIS-SWIR channel of MAJIS, the Moons and Jupiter Imaging Spectrometer aboard JUICE (Jupiter Icy Moons Explorer). Copyright 2014 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.