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| Title | Improved Stereophotogrammetric and Multi-View Shape-from-Shading DTMs of Occator Crater and Its Interior Cryovolcanism-Related Bright Spots |
| Creator | 范噶色 van Gasselt, Stephan;Neesemann, Alicia;Jaumann, Ralf;Castillo-Rogez, Julie C.;Raymond, Carol A.;Walter, Sebastian H. G.;Postberg, Frank |
| Contributor | 地政系 |
| Key Words | Ceres; Dawn; dwarf planets; asteroids; habitable worlds; satellite imagery; digital terrain model; stereophotogrammetry; stereophotoclinometry; shape from shading; Ames Stereo Pipeline |
| Date | 2025-01 |
| Date Issued | 14-Apr-2025 09:50:18 (UTC+8) |
| Summary | Over the course of NASA’s Dawn Discovery mission, the onboard framing camera mapped Ceres across a wide wavelength spectrum at varying polar science orbits and altitudes. With increasing resolution, the uniqueness of the 92 km wide, young Occator crater became evident. Its central cryovolcanic dome, Cerealia Tholus, and especially the associated bright carbonate and ammonium chloride deposits—named Cerealia Facula and the thinner, more dispersed Vinalia Faculae—are the surface expressions of a deep brine reservoir beneath Occator. Understandably, this made this crater the target for future sample return mission studies. The planning and preparation for this kind of mission require the characterization of potential landing sites based on the most accurate topography and orthorectified image data. In this work, we demonstrate the capabilities of the freely available and open-source USGS Integrated Software for Imagers and Spectrometers (ISIS 3) and Ames Stereo Pipeline (ASP 2.7) in creating high-quality image data products as well as stereophotogrammetric (SPG) and multi-view shape-from-shading (SfS) digital terrain models (DTMs) of the aforementioned spectroscopically challenging features. The main data products of our work are four new DTMs, including one SPG and one SfS DTM based on High-Altitude Mapping Orbit (HAMO) (CSH/CXJ) and one SPG and one SfS DTM based on Low-Altitude Mapping Orbit (LAMO) (CSL/CXL), along with selected Extended Mission Orbit 7 (XMO7) framing camera (FC) data. The SPG and SfS DTMs were calculated to a GSD of 1 and 0.5 px, corresponding to 136 m (HAMO SPG), 68 m (HAMO SfS), 34 m (LAMO SPG), and 17 m (LAMO SfS). Finally, we show that the SPG and SfS approaches we used yield consistent results even in the presence of high albedo differences and highlight how our new DTMs differ from those previously created and published by the German Aerospace Center (DLR) and the Jet Propulsion Laboratory (JPL). |
| Relation | Remote Sensing, Vol.17, No.3, 437, pp.1-49 |
| Type | article |
| DOI | https://doi.org/10.3390/rs17030437 |
| dc.contributor | 地政系 | |
| dc.creator (作者) | 范噶色 | |
| dc.creator (作者) | van Gasselt, Stephan;Neesemann, Alicia;Jaumann, Ralf;Castillo-Rogez, Julie C.;Raymond, Carol A.;Walter, Sebastian H. G.;Postberg, Frank | |
| dc.date (日期) | 2025-01 | |
| dc.date.accessioned | 14-Apr-2025 09:50:18 (UTC+8) | - |
| dc.date.available | 14-Apr-2025 09:50:18 (UTC+8) | - |
| dc.date.issued (上傳時間) | 14-Apr-2025 09:50:18 (UTC+8) | - |
| dc.identifier.uri (URI) | https://nccur.lib.nccu.edu.tw/handle/140.119/156552 | - |
| dc.description.abstract (摘要) | Over the course of NASA’s Dawn Discovery mission, the onboard framing camera mapped Ceres across a wide wavelength spectrum at varying polar science orbits and altitudes. With increasing resolution, the uniqueness of the 92 km wide, young Occator crater became evident. Its central cryovolcanic dome, Cerealia Tholus, and especially the associated bright carbonate and ammonium chloride deposits—named Cerealia Facula and the thinner, more dispersed Vinalia Faculae—are the surface expressions of a deep brine reservoir beneath Occator. Understandably, this made this crater the target for future sample return mission studies. The planning and preparation for this kind of mission require the characterization of potential landing sites based on the most accurate topography and orthorectified image data. In this work, we demonstrate the capabilities of the freely available and open-source USGS Integrated Software for Imagers and Spectrometers (ISIS 3) and Ames Stereo Pipeline (ASP 2.7) in creating high-quality image data products as well as stereophotogrammetric (SPG) and multi-view shape-from-shading (SfS) digital terrain models (DTMs) of the aforementioned spectroscopically challenging features. The main data products of our work are four new DTMs, including one SPG and one SfS DTM based on High-Altitude Mapping Orbit (HAMO) (CSH/CXJ) and one SPG and one SfS DTM based on Low-Altitude Mapping Orbit (LAMO) (CSL/CXL), along with selected Extended Mission Orbit 7 (XMO7) framing camera (FC) data. The SPG and SfS DTMs were calculated to a GSD of 1 and 0.5 px, corresponding to 136 m (HAMO SPG), 68 m (HAMO SfS), 34 m (LAMO SPG), and 17 m (LAMO SfS). Finally, we show that the SPG and SfS approaches we used yield consistent results even in the presence of high albedo differences and highlight how our new DTMs differ from those previously created and published by the German Aerospace Center (DLR) and the Jet Propulsion Laboratory (JPL). | |
| dc.format.extent | 98 bytes | - |
| dc.format.mimetype | text/html | - |
| dc.relation (關聯) | Remote Sensing, Vol.17, No.3, 437, pp.1-49 | |
| dc.subject (關鍵詞) | Ceres; Dawn; dwarf planets; asteroids; habitable worlds; satellite imagery; digital terrain model; stereophotogrammetry; stereophotoclinometry; shape from shading; Ames Stereo Pipeline | |
| dc.title (題名) | Improved Stereophotogrammetric and Multi-View Shape-from-Shading DTMs of Occator Crater and Its Interior Cryovolcanism-Related Bright Spots | |
| dc.type (資料類型) | article | |
| dc.identifier.doi (DOI) | 10.3390/rs17030437 | |
| dc.doi.uri (DOI) | https://doi.org/10.3390/rs17030437 |