Analyses of S190B photographs recorded on high-resolution reconnaissance films during the Skylab missions confirm the excellent performance of the ETC system. Low-contrast resolution values of 30 to 70 lpr/mm, corresponding to ground resolutions of 30 to 15m, are estimated for second-generation photographs distributed to investigators, and maximum scales of 1:50,000 to 1:100,000 are recommended for photomap products prepared from ETC photographs.

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  • Corporate Authors:

    American Society of Photogrammetry

    105 North Virginia Avenue
    Falls Church, VA  United States  22046
  • Authors:
    • Welch, R E
  • Publication Date: 1976-8

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Filing Info

  • Accession Number: 00139732
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 21 1976 12:00AM