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Photographing the Earth from the International Space Station

Astronaut Photography of Earth - Display Record

STS098-715B-84

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File NameFile Size (bytes)WidthHeightAnnotatedCroppedPurposeComments
View STS098-715B-84.JPG 23046515512 No No From ISD PhotoCDs
View STS098-715B-84.JPG 79714540410 Yes Yes NASA's Earth Observatory web site
View STS098-715B-84.JPG 8648810301024 No No From ISD PhotoCDs
View STS098-715B-84_2.JPG 29365620632048 No No From ISD PhotoCDs
View STS098-715B-84.JPG 32780522101677 No Yes NASA's Earth Observatory web site
View STS098-715B-84_3.JPG 85634341274096 No No From ISD PhotoCDs
View STS098-715B-84.TIF 809921422101677 No Yes NASA's Earth Observatory web site

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Electronic Image Data

Camera files only apply to electronic still cameras.
No sound file available.

Identification

Mission: STS098 Roll: 715B Frame: 84 Mission ID on the Film or image: STS98
Country or Geographic Name: CANADA-S
Features: ESTEVAN, POWER PLANTS
Center Point: Latitude: 49.0 Longitude: -103.0 (Negative numbers indicate south for latitude and west for longitude)

Stereo: (Yes indicates there is an adjacent picture of the same area)
ONC Map ID: JNC Map ID:

Camera

Camera Tilt: 23
Camera Focal Length: 250mm
Camera: HB: Hasselblad
Film: 5069 : Kodak Elite 100S, E6 Reversal, Replaces Lumiere, Warmer in tone vs. Lumiere.

Quality

Film Exposure:
Percentage of Cloud Cover: 10 (0-10)

Nadir

GMT Date: 20010217 (YYYYMMDD) GMT Time: 232752 (HHMMSS)
Nadir Point Latitude: 49.1, Longitude: -104.4 (Negative numbers indicate south for latitude and west for longitude)

Nadir to Photo Center Direction: East
Sun Azimuth: 243 (Clockwise angle in degrees from north to the sun measured at the nadir point)
Spacecraft Altitude: 196 nautical miles (363 km)
Sun Elevation Angle: 7 (Angle in degrees between the horizon and the sun, measured at the nadir point)
Orbit Number: 158

Captions

Snow and ice serve to accent human activities in this photograph taken by the Space Shuttle mission STS-98 crewmembers on February 17, 2001 (STS098-715B-84). The Souris River stretches across the photograph from left to right, with the upstream Rafferty Dam Reservoir frozen over on the far left. Two power plants, the Boundary Dam Power Station and the Shand Power Station, can be identified by the smoke plumes and shadows of those plumes. The river is frozen over upstream of the Boundary Dam Power Station, but thermal loading from the plants has warmed the water in the Boundary Dam Reservoir so that it remains nearly ice free. Downstream of the reservoirs, thermal loading is sufficient to maintain open flow in the Souris River.

The Estevan Coalfield is a formation of about 1500 square km that accounts for most of Saskatchewan’s coal production. The coal is mined from a trench at the surface, processed, and then used to fire the two power plants. These plants provide almost half of Saskatchewan’s electricity. Areas of active surface mining and processing appear black in the photograph; roads used for transporting the coal are also dusted black. Around the areas of the mines, a rough texture reveals other spoil piles and areas where underground mining used to take place. The city of Estevan (population about 12,000) is the medium-gray gridded area in the upper left of the photo.

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