Hubble Space Telescope Visible to Near-IR Imaging and Spectroscopy of Mars in Support of Future Landing Site Selection

Details Hubble Space Telescope Visible to Near-IR Imaging and Spectroscopy of Mars in Support of Future Landing Site Selection Hubble Space Telescope Visible to Near-IR Imaging and Spectroscopy of Mars in Support of Future Landing Site Selection

Jan 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001mers.work...53m&link_type=abstract

First Landing Site Workshop for the 2003 Mars Exploration Rovers, p. 53

Physics

Hubble Space Telescope, Mars (Planet), Landing Sites, Near Infrared Radiation, Mars Surface, Imaging Techniques, Visible Spectrum, Spectroscopy, Spatial Resolution, Thermal Mapping, Measuring Instruments, Mars Surveyor 2001 Mission, Wavelengths

Scientific paper

Since 1990, the Hubble Space Telescope (HST) has been obtaining high-quality visible to near-IR imaging and spectroscopic measurements of Mars. The most recent observations, obtained during the 1999 opposition, are the highest spatial resolution Earth-based data of Mars ever obtained, providing resolution of 20 to 30 km/pixel for regions near equatorial latitudes. Examples of 1999 HST images are shown. The HST data cover up to 12 discrete diagnostic wavelengths (approximately 255 to 1042 nm) that were not measured by the Mariner, Viking, or Mars Global Surveyor (MGS) Orbiters and they approach the spatial resolution of existing orbital spectroscopic measurements by Phobos-2 (22 km/pixel ISM data) and MGS (approximately 3x6 km to approximately 10 km/spectrum TES data). HST's ability to image the planet at these visible to near-IR wavelengths would only have been exceeded by the multispectral investigation planned by the MARCI instrument on the failed Mars Climate Orbiter mission. Some of MARCI's capabilities may be recoverable from measurements by the VIS channel on the Mars 2001 Orbiter's Thermal Emissing Imaging System (THEMIS) instrument, if that instrument is successfully launched and delivered to Martian orbit. However, with the failure of MCO and prior to the potential acquisition of THEMIS/VIS data, HST provides the best available capability for studying Mars at visible to near-IR wavelengths.

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