02529cam a2200445 i 4500 rnd000000000048595 RAND 920212s1991 cauo b 000 0 eng d 0833019872 RAND/N-3425-JPL (Sirsi) a190701 $20.00 CstmoR CstmoR QB407 .D388 1991 Davies, Merton E. author. A control network of Triton / Merton E. Davies, Patricia G. Rogers, and Tim R. Colvin. Santa Monica, CA : RAND, 1991. 7 pages : photographs ; 28 cm text txt rdacontent computer c rdamedia unmediated n rdamedia online resource cr rdacarrier volume nc rdacarrier A RAND note ; 3425 Originally published in: Journal of Geophysical Research, v. 96, no. E1, Aug. 25, 1991, p. 15,675-15,681. Includes bibliographical references (p. 15,681). A control network for Triton has been computed using a bundle-type analytical triangulation program. The network contains 105 points that were measured on 57 Voyager 2 pictures. The adjustment contained 1,010 observation equations and 382 normal equations and resulted in a standard measurement error of 13.36 micrometers. The authors determined coordinates of the control points, the camera orientation angles at the times when the pictures were taken, and Triton's mean radius. A separate statistical analysis confirmed Triton's radius to be 1352.6, plus or minus 2.4 km. Attempts to tie the control network around the satellite were unsuccessful because discontinuities exist in high-resolution coverage between 66 degrees and 289 degrees longitude, north of 38 degrees latitude, and south of 78 degrees latitude. Also available on the internet via WWW in PDF format. Description based on print version record. Planets Exploration. Space photography Technique. Neptune (Planet) Satellites Photographs from space. Triton (Satellite) Photographs from space. Rogers, Patricia G. (Patricia Grizzaffi) author. Colvin, Tim R. author. Rand Corporation. Jet Propulsion Laboratory (U.S.) Journal of geophysical research. Vol. 96, no. E1. Aug. 25, 1991. Rand note ; 3425. Online Access http://www.rand.org/pubs/notes/N3425/ 597408 597408