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Titre du Document
Mission to Mars : the HiRISE camera on-board MRO
Auteur(s)
EBBEN Thomas H. ; BERGSTROM James ; SPUHLER Peter ; ...
Corporation(s) du ou des auteurs
Society of photo-optical instrumentation engineers USA (Organisateur de congrès)
Résumé
Following its launch in August, 2005 and a year of interplanetary cruise and aero-braking, the successful Mars Reconnaissance Orbiter (MRO) mission is currently orbiting Mars and down-linking imagery from the High Resolution Imaging Science Experiment (HiRISE) camera. The primary objectives of the MRO mission are to characterize the present climate of Mars, look for evidence of water-related activities, and characterize potential landing sites. After only four months in the Primary Science Phase (PSP) of the mission, MRO has returned more data than any other previous Mars mission. Approximately one-third of this data volume is from the HiRISE camera, built by Ball Aerospace & Technologies Corporation (BATC), for the University of Arizona (UofA), Department of Planetary Sciences. With a 0.5-meter primary mirror, the HiRISE instrument includes the largest optical telescope ever sent beyond Earth's orbit, and is producing images with unprecedented resolution. It has detected objects of less than one meter size from the nominal orbit of 250 x 320 km. The highest resolution images have a scale of 25 to 32 cm per pixel (1.0 microradian IFOV). HiRISE is a push-broom camera with a swath width of 6 km in a broad red spectral band and 1.2 km in blue-green and near infrared bands. There are 14 CCD detector chips (2048 x 128 TDI elements each) on the focal plane. The HiRISE camera was designed to minimize use of spacecraft resources. Even with a half-meter primary mirror, through the use
Editeur
SPIE
Type du document
Conférence : Focal plane arrays for space telescopes, San Diego CA, USA, 2007
Identifiant
ISSN : 0277-786X ISBN : 978-0-8194-6838-3/0-8194-6838-X CODEN : PSISDG
Source
Proceedings of SPIE, the International Society for Optical Engineering A. 2007, vol. 6690, pp. 66900B.1-66900B.22 [bibl. : 7 ref.] [nb. vol. : 1]
Langue
Anglais
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