| NASA Center: |
Headquarters |
|---|
| Image # : |
74-H-275 |
|---|
| Date : |
4/26/1974
|
|---|
|
Title
First Photo of U.S. by NASA Satellite
Full Description
A giant photo map of the contiguous 48 states of the United States,
the first ever assembled from satellite images, completed for NASA
by the U.S. Department of Agriculture Soil Conservation Service
Cartographic Division. The map is 10 by 16 feet, is composed of
595 cloud-free black-and-white images returned from NASA's first
Earth Resources Technology Satellite (ERTS-1). The images were
all taken at the same altitude (912 kilometers: 560 miles) and the
same lighting angle. The images were produced by the spacecraft's
Multi-spectral Scanner System (MSS) in Band 5, or the red portion
of the visible spectrum, during the period July 25 to October 31,
1972. A similar mosaic has been made using Band 7, the near
infrared, of the MSS. The mosaic is produced at scale of
1:1,000,000 (one inch on the mosaic equals a million inches on the
ground). Enlargements of segments of the mosaic can be made up
to a scale of 1:500,000. ERTS images are used for many other
purposes besides cartography, including geology, hydrology,
environmental and land use studies, agriculture studies, and various
other areas.
Keywords
Earth Resources Technology Satellite ERTS Multi-spectral Scanner
System MSS
Subject Category
Earth Science
Reference Numbers
- Center:
HQ
- Center Number:
74-H-275
- GRIN DataBase Number:
GPN-2003-00031
Source Information
- Creator/Photographer: NASA
- Original Source: DIGITAL
| Resolution | Format | Width
(Pixels) | Height
(Pixels) | Size
(KBytes) |
Thumbnail |
JPEG |
90 |
72 |
17 |
Small |
JPEG |
640 |
512 |
319 |
Medium |
JPEG |
1501 |
1200 |
1,521 |
Large |
JPEG |
3002 |
2400 |
5,038 |
Other relevant NASA Web sites:
• NASA Headquarters
• NASA History Office
• NASA Image eXchange (NIX)
• NASA Multimedia Gallery
• NASA Human Spaceflight
Updated October 31, 2002
• History Questions: NASA History Office
• Responsible NASA Official: Steve Garber
• Author: Michael Hahn. Editor: Dwayne A. Day
• Curator & Technical Questions: Erin Needham
• NASA's Privacy Statement
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