STS036-91-111

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NASA Photo ID

STS036-91-111

Focal Length

100mm

Date taken

1990.03.03

Time taken

10:53:12 GMT

Resolutions offered for this image:
5700 x 5900 pixels 500 x 518 pixels 640 x 480 pixels

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Image Details
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Spacecraft nadir point: 13.0° N, 15.4° E

Photo center point: 13.5° N, 14.5° E

Photo center point by machine learning:

Nadir to Photo Center: Northwest

Spacecraft Altitude: 128 nautical miles (237km)

Country or Geographic Name:

CHAD

Features:

LAKE CHAD

Features Found Using Machine Learning:

Cloud Cover Percentage:

0 (no clouds present)

Sun Elevation Angle:

70°

Sun Azimuth:

168°

Camera:

Hasselblad

Focal Length:

100mm

Camera Tilt:

26 degrees

Format:

2443: Kodak Aerochrome 2443, color IR, thin base, EA-5 process thru June 1999, E-6 process afterward

Film Exposure:

Normal

Additional Information

Width	Height	Annotated	Cropped	Links
5700 pixels	5900 pixels	No	No	Download Image
500 pixels	518 pixels	No	No	Download Image
640 pixels	480 pixels	No	No	Download Image

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Image Caption: An infra-red view of Lake Chad, Africa (13.5N, 14.5E) showing the sparse vegetation still remaining on the shores and dry bed of this almost extinct lake. First noticed about 25 to 30 years ago that the lake was undergoing change and was drying up, astronauts since then have been photographing it on a regular basis to record the diminishing lake bed. This lake was once the aproximate size of Lake Erie but is now only about half that size.