Earth from Space - Image Information


LOCATION Direction Photo #: STS098-715B-84 Date: Feb. 2001
Geographic Region: CANADA-S
Feature: ESTEVAN, POWER PLANTS


IMAGE
 
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.


Images: All Available Images Low-Resolution 77k
Mission: STS098  
Roll - Frame: 715B - 84
Geographical Name: CANADA-S  
Features: ESTEVAN, POWER PLANTS  
Center Lat x Lon: 49.0N x 103W
Film Exposure:   N=Normal exposure, U=Under exposed, O=Over exposed, F=out of Focus
Percentage of Cloud Cover-CLDP: 10
 
Camera:: HB
 
Camera Tilt: 23   LO=Low Oblique, HO=High Oblique, NV=Near Vertical
Camera Focal Length: 250  
 
Nadir to Photo Center Direction: E   The direction from the nadir to the center point, N=North, S=South, E=East, W=West
Stereo?:   Y=Yes there is an adjacent picture of the same area, N=No there isn't
Orbit Number: 158  
 
Date: 20010217   YYYYMMDD
Time: 232752   GMT HHMMSS
Nadir Lat: 49.1N  
Latitude of suborbital point of spacecraft
Nadir Lon: 104.4W  
Longitude of suborbital point of spacecraft
Sun Azimuth: 243   Clockwise angle in degrees from north to the sun measured at the nadir point
Space Craft Altitude: 196   nautical miles
Sun Elevation: 7   Angle in degrees between the horizon and the sun, measured at the nadir point
Land Views:  
Water Views: ICE, RESERVOIR, RIVER  
Atmosphere Views: SMOKE  
Man Made Views: DAM, MINING  
City Views: ESTEVAN  

Photo is not associated with any sequences


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