To determine an accurate full surface slope of the moon requires the measurement of slope in two
LOLA's multibeam 50-point pattern projected onto the lunar surface provides five measurements in an X-pattern from which the slopes can be derived.
This X-shaped five-point pattern also has the advantage that when rotated, it will
provide five near-equidistant parallel profiles, in LOLA's case with approximately 12 meters
between each profile.
December 28, 2010 4:00 AM PST
Photo by: NASA/GSFC/MIT/SVS
| Caption by: James Martin
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