ERTS-1, later Landsat 1, begins the civil land-imaging record

Assembled from 20 blocks · 1 evidence · 14 related

1. Story
2. The first Earth Resources Technology Satellite launched into a sun-synchronous orbit carrying a multispectral scanner, beginning a continuous record of the Earth's land surface that has now run for more than half a century. The mission established the pattern of civil Earth observation as a public programme whose value was assumed to be societal rather than commercial, a framing that would be contested repeatedly over the following decades as attempts were made to sell the data.
3. Knowledge
4. Earth observation
5. Landsat
6. ERTS-1, later Landsat 1, begins the civil land-imaging record
7. Connections
8. Landsat
9. Earth observation
10. Copernicus
11. ERTS-1, later Landsat 1, begins the civil land-imaging record
12. The United States opens the Landsat archive at no charge
13. Satellite communications
14. Copernicus
15. Planet Labs
16. ERTS-1, later Landsat 1, begins the civil land-imaging record
17. The United States opens the Landsat archive at no charge
18. Sentinel-1A launches and Copernicus data becomes free and open
19. Evidence
20. Supports the Landsat launch chronology from 1972 and the 2008 decision to distribute the full archive at no charge, together with the subsequent increase in scene distribution. V55 verification basis: usgs.gov was not retrievable in this session; the distribution increase is given as orders of magnitude rather than a number.