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Mars Global Surveyor:
MOLA
The Mars Orbiter Laser Altimeter (MOLA)
generated altimetry profiles used to create global
topographic maps. The MOLA instrument stopped acquiring
altimetry data on June 30, 2001, and after that operated
in passive radiometry mode until the end of the MGS
mission. MOLA data sets are produced by the MOLA Science
Team and archived by the PDS Geosciences Node.
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Raw Data Products |
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Aggregated Experiment Data Records (AEDRs) |
Online access |
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Derived Data Products |
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| Precision Experiment
Data Records (PEDRs): altimetry profiles |
Online access |
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| Initial Experiment
Gridded Data Records (IEGDRs) |
Stored offline; available on
request |
| Mission Experiment
Gridded Data Records (MEGDRs): topographic maps |
Online access |
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| Spherical harmonics
model (SHADR) |
Online access |
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| Passive Radiometry Data
Records (PRDR) |
Online access |
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PDS4 Archive (maintained version) |
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MGS MOLA Topography Derived bundle
MEGDR topographic maps and the SHADR spherical harmonics
model |
Online access |
Online Tools
MOLA Products and IAU
Coordinates
The final version (Version L) of the
MOLA PEDR data set was generated using the IAU 2000
coordinate system. The final version of the MOLA
topographic maps (MEGDRs) was generated from the Version
L PEDRs, and therefore also uses the IAU 2000 coordinate
system. Older versions of MOLA PEDRs and topographic
maps were created in the IAU 1991 system. For more
information, see the
PEDR Data Set Information under Data Set
Overview.
ENVI Header Files
Header files for use with the commercial image
processing software ENVI are provided for every MEGDR
image. In the PDS4 bundle each header (.hdr) accompanies
its image in the same directory. These files are provided
because ENVI is not able to import the map projection
information in the MEGDR labels. See
MOLA_ENVI.PDF for more information.
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