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Spacecraft nadir point: 25.0° N, 13.5° E

Photo center point: 28.0° N, 6.0° E

Nadir to Photo Center: West

Spacecraft Altitude: 316 nautical miles (585km)
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Image Caption: Two great sand seas occupy northern Algeria, Grand Erg Oriental (Eastern Sand Sea) and Grand Erg
Occidental (Western Sand Sea). Both sand seas occupy depressions that are separated by a north-south rise
called Mizab. Ergs are areas of large accumulations of sand that take the form of actively shifting dunes,
fossilized dunes, or extensive sand sheets.