STS040-152-18

NASA Photo ID

STS040-152-18

Focal Length

90mm

Date taken

1991.06.11

Time taken

14:20:53 GMT

Resolutions offered for this image:
640 x 480 pixels

Cloud masks available for this image:

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Image Details
Camera Information
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Spacecraft nadir point: 15.8° S, 18.9° E

Photo center point: 16.5° S, 18.0° E

Photo center point by machine learning:

Nadir to Photo Center: Southwest

Spacecraft Altitude: 158 nautical miles (293km)

Country or Geographic Name:

ANGOLA

Features:

RIO CUBANGO NR CANDELELA

Features Found Using Machine Learning:

Cloud Cover Percentage:

0 (no clouds present)

Sun Elevation Angle:

24°

Sun Azimuth:

305°

Camera:

Linhof

Focal Length:

90mm

Camera Tilt:

23 degrees

Format:

QX868: Kodak, natural color positive, Ektachrome QX868(5017 emulsion), ASA 64, thin base

Film Exposure:

Normal

Additional Information

Width	Height	Annotated	Cropped	Purpose	Links
640 pixels	480 pixels	No	No	ISD 1	Download Image

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Image Caption:
STS040-152-018 Southern Angola, Rice ageS dunes and lakes. Dunes
formed during the windier, drier- than-present times of the last
high-latitude ice age. A subsequent phase, wetter than present,
led to the development of many permanent lakes throughout south
central Africa. Ancient lake shorelines are folded around the
preexisting dunes. The whole semiarid landscape is now covered
by dry savannah without any surface water.