STS61C-42-86
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Spacecraft nadir point: 16.0° N, 18.4° E

Photo center point: 19.5° N, 22.5° E

Nadir to Photo Center: Northeast

Spacecraft Altitude: 184 nautical miles (341km)
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Image Caption:
Detailed Views of Mourdi Depression (top left of general
view) T19

Bed of one of the proposed major rivers of the ancient Trans-
African Drainage System (TADS) is the wide, sand-filled depres-
sion (top left). The small, ragged scarps (200-400 feet high) are
formed in ancient eroded soils, probably also related previous
wetter climates. Wind streaks off these dark areas give a vivid
sense of wind direction (NE to SW). (61C-42-0086)