OAA computing section circular NK 872 C/2001 S1 (Skiff)
The following improved orbital elements, by S. Nakano, are from 33 observations 2001 Sept. 26 to Nov. 15. The mean residual is +/- 0.75 arc second. T = 2001 June 2.54935 +/- 0.09768 (m.e.) TT Peri. = 285.19248 +/- 0.01406 Node = 330.11246 +/- 0.00465 (2000.0) Inc. = 139.13569 +/- 0.00164 q = 3.7500432 +/- 0.0004017 AU e = 0.9318684 +/- 0.0010103 1/a = +0.0181682 +/- 0.0002694 1/AU P = 408.35 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2001/ 010927 649 0.2- 0.2- 011012 360 0.3+ 1.2- 010926 699 1.2- 0.3- 010927 649 0.5- 0.2- 011014 402 0.8+ 0.2+ 010926 699 0.7+ 1.0+ 010927 649 0.5+ 0.1+ 011014 402 0.4- 1.5+ 010926 699 0.0 1.2+ 010928 711 0.5- 0.5- 011014 402 0.7+ 1.5+ 010926 699 1.9+ 0.7+ 010928 711 0.2+ 0.4+ 011023 402 (2.4+ 2.2+) 010926 413 0.2+ 0.5- 010928 711 0.8- 0.8+ 011023 402 1.2+ 1.8+ 010926 413 0.2+ 0.4- 010929 649 0.5- 1.1- 011024 360 1.1- 0.4- 010926 413 0.2- 0.4- 010929 649 0.7- 0.1+ 011024 360 0.9- 0.3- 010926 413 0.1- 0.6- 010929 711 0.8+ 0.0 011024 360 0.1- 0.9- 010926 413 0.7- 0.7- 010929 711 0.5+ 1.0+ 011115 474 0.6+ 0.7+ 010927 699 (3.8+ 5.7+) 010929 649 0.2- 0.1- 011115 474 0.4- 0.8- 010927 699 (3.3+ 4.9+) 010929 711 0.2+ 0.2- 011115 474 (3.8+ 1.0+) 010927 699 (0.5- 4.2+) 011012 360 0.4- 0.9- 010927 699 (0.6+ 2.7+) 011012 360 0.2+ 1.3- ( ) -------- Rejected Obs.
Director, Computing Section Late edition Syuichi Nakano 2001 Nov. 26