ISS061-E-152239

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NASA Photo ID

ISS061-E-152239

Focal Length

140mm

Date taken

2020.02.02

Time taken

10:15:58 GMT

Resolutions offered for this image:
720 x 480 pixels 5568 x 3712 pixels 640 x 427 pixels

Cloud masks available for this image:
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Image Details
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Spacecraft nadir point: 11.3° N, 23.1° E

Photo center point: 13.1° N, 24.4° E

Photo center point by machine learning: 13.09° N, 24.37° E

Nadir to Photo Center: Northeast

Spacecraft Altitude: 227 nautical miles (420km)

View an image on a map for this photo that has been georeferenced using machine learning.

Country or Geographic Name:

SUDAN

Features:

JEBEL MARRA, MARRAH MOUNTAINS, SAHARA DESERT, MASSIF, LAVA FLOWS, DERIBA CALDERA

Features Found Using Machine Learning:

Cloud Cover Percentage:

10 (1-10)%

Sun Elevation Angle:

61°

Sun Azimuth:

167°

Camera:

Nikon D5 Electronic Still Camera

Focal Length:

140mm

Camera Tilt:

30 degrees

Format:

5568E: 5568 x 3712 pixel CMOS sensor, 35.9 x 23.9 mm, total pixels: 21.33 million, Nikon FX format

Film Exposure:

Additional Information

Width	Height	Annotated	Cropped	Purpose	Links
720 pixels	480 pixels	Yes	Yes	NASA's Earth Observatory web site	Download Image
5568 pixels	3712 pixels	No	No		Download Image
640 pixels	427 pixels	No	No		Download Image

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Image Caption: Jebel Marra, Sudan

Astronauts aboard the International Space Station (ISS) took this near-vertical photograph of Jebel Marra (also known as the Marrah Mountains) in the eastern Sahara Desert. The almost circular massif in the Darfur region of Sudan is a large cluster of volcanoes and lava flows, with a large central area of volcanic pyroclastic deposits that measures roughly 70 kilometers (40 miles) north to south. Numerous small volcanic cones appear around the margin of the massif.

A collapsed volcano, the Deriba Caldera, is the highest point in Sudan (3042 meters/9,980 feet) and the site of two small lakes. The caldera also drew the interest of astronauts in 2008.

The entire massif rises high enough to have a climate that is cooler and wetter than the surrounding desert. It is thus a center of human population, with numerous small fields and several towns. Seen from space, the evidence of human activity comes in the form of palm groves. The two prominent dark patches at image center are likely fire scars.