The Landsat Program - News
Landsat 7 Tests Bumper Mode Operations
- Mar. 19, 2006 • Operations of Landsat 7 in bumper
mode were successfully tested over several geometric
calibration sites on Mar. 3 and 19. Currently, the motion of Landsat
7's scan mirror during imaging is controlled with the Scan Angle
Monitor (SAM). However, the scan mirror assembly will wear over
time and impede the instrument's ability to synchronize the calibration
shutter with the scan mirror. This is predicted to happen between
Mar. 2007 and Jan. 2008. When this occurs, operations will be switched
to bumper mode. Landsat 5 has been operating in bumper mode since
2002.
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