| Abstract: | With the successful flight of the ERTS-1 satellite, orbital height images are available for precision processing into products such as 1:1,000,000-scale photomaps and enlargements up to 1:250,000 scale. In order to maintain positional error below 100 meters, control points for the precision processing must be carefully selected, clearly definitive on photos in both X and Y. Coordinates of selected control points measured on existing ½ and 15-minute standard maps provide sufficient accuracy for any space imaging system thus far defined. This procedure references the points to accepted horizontal and vertical datums. Maps as small as 1:250,000 scale can be used as source material for coordinates, but to maintain the desired accuracy, maps of 1:100,000 and larger scale should be used when available. |
| Genre: | Conference publication |
| ProdID: | 70039512 |
| Citation Author: | Burger, Thomas C. |
| Citation Contributing Office: | Topographic Division |
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| Citation Number Of Pages: | 15 |
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| Citation Phsyical Description: | 13 p. |
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| Citation Search Results Text: | Ground control requirements for precision processing of ERTS images; 1973; Conference publication; Burger, Thomas C. |
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| Citation Year: | 1973 |
| Type: | citation/reference |
| Text: | Ground control requirements for precision processing of ERTS images; 1973; Conference publication; Burger, Thomas C. |
| URL (THUMBNAIL): | http://pubs.usgs.gov/confpub/70039512/report-thumb.jpg |
| URL (DOCUMENT): | http://pubs.usgs.gov/confpub/70039512/report.pdf |
| Date Other: | Tue, 29 Jan 2008 15:49 -0600 |
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