ISS006-E-44689
| NASA Photo ID | ISS006-E-44689 |
| Focal Length | 85mm |
| Date taken | 2003.04.12 |
| Time taken | 02:31:34 GMT |
Resolutions offered for this image:
349 x 540 pixels 496 x 768 pixels 540 x 368 pixels 1000 x 697 pixels 1024 x 768 pixels 3032 x 2064 pixels 639 x 435 pixels
349 x 540 pixels 496 x 768 pixels 540 x 368 pixels 1000 x 697 pixels 1024 x 768 pixels 3032 x 2064 pixels 639 x 435 pixels
Cloud masks available for this image:
Spacecraft nadir point: 23.9° S, 45.2° W
Photo center point: 23.5° S, 46.5° W
Photo center point by machine learning:
Photo center point: 23.5° S, 46.5° W
Photo center point by machine learning:
Nadir to Photo Center: West
Spacecraft Altitude: 216 nautical miles (400km)
Country or Geographic Name: | BRAZIL |
Features: | SAO PAULO & SANTOS AT NIGHT |
| Features Found Using Machine Learning: | SAO PAULO |
Cloud Cover Percentage: | 10 (1-10)% |
Sun Elevation Angle: | -73° |
Sun Azimuth: | 207° |
Camera: | Kodak DCS760c Electronic Still Camera |
Focal Length: | 85mm |
Camera Tilt: | 21 degrees |
Format: | 3060E: 3060 x 2036 pixel CCD, RGBG array |
Film Exposure: | |
| Additional Information | |
| Width | Height | Annotated | Cropped | Purpose | Links |
|---|---|---|---|---|---|
| 349 pixels | 540 pixels | Photographic Highlights | Download Image | ||
| 496 pixels | 768 pixels | Photographic Highlights | Download Image | ||
| 540 pixels | 368 pixels | Yes | Earth From Space collection | Download Image | |
| 1000 pixels | 697 pixels | No | No | NASA's Earth Observatory web site | Download Image |
| 1024 pixels | 768 pixels | Yes | Presentation | Download Image | |
| 3032 pixels | 2064 pixels | No | No | Download Image | |
| 639 pixels | 435 pixels | No | No | Download Image |
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Image Caption: A favorite activity of astronauts and cosmonauts aboard the International Space Station is looking at the city lights below when the Station crosses the Earth's dark side. The lights outline the densest population centers and coastlines, and suggest cultural patterns. Taking these low-light images using the equipment on board the Station has been challenging to the crew members because of the long exposure times required. Astronaut Don Pettit, who leaves the station for Earth today (May 3, 2003), has pioneered an approach using a home-made tracking system to track the ground as it moves relative to the Station, allowing him to acquire long-exposure images under low light conditions. Don's ingenious "Barn-Door Tracker" is a camera mount with a rigged with a hand drill to create a motion tracking system.
This image shows the sprawling urban footprint of Sao Paulo, Brazil, South America's largest city with roughly 17 million people. The different colors (pink, white, and gray) define different types and generations of streetlights. The port of Santos, on the right side of the photograph, is also well defined by lights.
This image shows the sprawling urban footprint of Sao Paulo, Brazil, South America's largest city with roughly 17 million people. The different colors (pink, white, and gray) define different types and generations of streetlights. The port of Santos, on the right side of the photograph, is also well defined by lights.
