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High solar incidence angle basemap
illuminated from the east reduced
data records for the MDIS camera
system on MESSENGER.
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Citation |
C. Hash, MESS MDIS MAP PROJ
HIGH-INCIDENCE BASEMAP EAST RDR V1.0, NASA Planetary Data System, 2015 |
Digital Object Identifier (DOI) |
10.17189/1520207
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Data Set Abstract |
Abstract
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The Mercury Dual Imaging System (MDIS) consists of two cameras, a Wide
Angle Camera (WAC) and a Narrow Angle Camera (NAC), mounted on a
common pivot platform. This dataset includes Map Projected High-
Incidence Angle Basemap Illuminated from the East RDRs (HIEs) which
comprise a global map of I/F measured by the NAC or WAC filter 7 (both
centered near 750 nm) during the the Extended Mission at high
incidence angles to accentuate subtle topography, photometrically
normalized to a solar incidence angle (i) = 30 degrees, emission
angle (e) = 0 degrees, and phase angle (g) = 30 degrees at a spatial
sampling of 256 pixels per degree. The HIE data set is a companion to
the Map Projected High-Incidence Angle Basemap Illluminated from the
West RDR (HIW) data set. Together the two data sets are intended to
detect and allow the mapping of subtle topography. They complement a
Basemap Data Record (BDR) data set also composed of WAC filter 7 and
NAC images acquired at moderate/high solar incidence angles centered
near 68 degrees (changed to 74 degrees in the final end-of-mission
data delivery), and a Low Incidence Angle (LOI) data set also
composed of WAC filter 7 and NAC images acquired at lower incidence
centered near 45 degrees, analogous to the geometry used for color
imaging.
The map is divided into 54 'tiles', each representing the NW, NE,
SW, or SE quadrant of one of the 13 non-polar or one of the 2 polar
quadrangles or 'Mercury charts' already defined by the USGS. Each tile
also contains 5 backplanes: observation ID; BDR metric, a metric used
to determine the stacking order of component images, modified for the
higher incidence angle centered near 78 degrees; solar incidence
angle; emission angle; and phase angle. |
Search/Access Data |
Imaging Planetary Image Atlas
Mercury Orbital Data Explorer
Imaging Online Data Volumes
FTP Access to Data
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Additional Information |
Mission Information |
MESSENGER
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Data Set Information |
MESS-H-MDIS-5-RDR-HIE-V1.0 |
Instrument Host Information |
MESS
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Instrument Information |
MDIS-NAC
MDIS-WAC
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Target Information |
MERCURY
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