STS61A-35-86
| NASA Photo ID | STS61A-35-86 |
| Focal Length | 250mm |
| Date taken | 1985.11.01 |
| Time taken | 19:20:44 GMT |
Resolutions offered for this image:
3872 x 3904 pixels 634 x 639 pixels 5700 x 5900 pixels 5687 x 5687 pixels 500 x 518 pixels 640 x 480 pixels
3872 x 3904 pixels 634 x 639 pixels 5700 x 5900 pixels 5687 x 5687 pixels 500 x 518 pixels 640 x 480 pixels
Cloud masks available for this image:
Spacecraft nadir point: 56.1° N, 72.4° W
Photo center point: 56.0° N, 74.5° W
Photo center point by machine learning:
Photo center point: 56.0° N, 74.5° W
Photo center point by machine learning:
Nadir to Photo Center: West
Spacecraft Altitude: 183 nautical miles (339km)
Country or Geographic Name: | CANADA-Q |
Features: | CLEARWATER LAKES |
| Features Found Using Machine Learning: | |
Cloud Cover Percentage: | 0 (no clouds present) |
Sun Elevation Angle: | 11° |
Sun Azimuth: | 221° |
Camera: | Hasselblad |
Focal Length: | 250mm |
Camera Tilt: | 35 degrees |
Format: | 5017: Kodak, natural color positive, Ektachrome, X Professional, ASA 64, standard base |
Film Exposure: | Normal |
| Additional Information | |
| Width | Height | Annotated | Cropped | Purpose | Links |
|---|---|---|---|---|---|
| 3872 pixels | 3904 pixels | No | No | Earth From Space collection | Download Image |
| 634 pixels | 639 pixels | No | No | Earth From Space collection | Download Image |
| 5700 pixels | 5900 pixels | No | No | Download Image | |
| 5687 pixels | 5687 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: STS61A-35-86 Clearwater Lakes, Quebec, Canada November 1985
These twin circular lakes (large dark features) were formed simultaneously by the impact of an asteroidal pair which slammed into the planet approximately 290 million years ago. The lakes are located near the eastern shore of Hudson Bay within the Canadian Shield in a region of generally low relief in northern Quebec province. Notice that the larger western structure contains a ring of islands that surrounds the center of the impact zone. The lakes are named after their exceedingly clear water. Also notice that the surrounding terrain shows widespread scarring from glaciation. The multitude of linear and irregular shaped lakes (dark features) are the result of gouging or scouring action caused by the continental ice sheets that once moved across this area.
These twin circular lakes (large dark features) were formed simultaneously by the impact of an asteroidal pair which slammed into the planet approximately 290 million years ago. The lakes are located near the eastern shore of Hudson Bay within the Canadian Shield in a region of generally low relief in northern Quebec province. Notice that the larger western structure contains a ring of islands that surrounds the center of the impact zone. The lakes are named after their exceedingly clear water. Also notice that the surrounding terrain shows widespread scarring from glaciation. The multitude of linear and irregular shaped lakes (dark features) are the result of gouging or scouring action caused by the continental ice sheets that once moved across this area.
