OAA computing section circular NK 1062 Uncertainty Returns in 2007

Extension from an orbit in NK 670. 75P/Kohoutek T = 2007 Nov. 3.28073 TT Epoch = 2007 Oct. 27.0 TT Peri. = 175.63265 e = 0.4945740 Node = 269.68285 (2000.0) a = 3.5524733 AU Inc. = 5.90094 n'= 0.14720001 q = 1.7955123 AU P = 6.696 years A1 = +3.267 A2 = +0.67192 From 83 observations 1975-1988, mean residual 1".04. The prediction from an orbit on CCO 2003. P/1819 W1 (Blanpain) T = 2007 Nov. 3.41238 TT Epoch = 2007 Oct. 27.0 TT Peri. = 4.87724 e = 0.6866687 Node = 72.70829 (2000.0) a = 2.9849623 AU Inc. = 8.14610 n'= 0.19111545 q = 0.9352820 AU P = 5.157 years From 7 observations 1919 Dec. 14-1920 Jan. 15. See the prediction in NK 782. P/1894 F1 (Denning) T = 2007 Dec. 4.34738 TT Epoch = 2007 Dec. 6.0 TT Peri. = 102.89719 e = 0.6405490 Node = 25.89476 (2000.0) a = 4.5458965 AU Inc. = 2.49631 n'= 0.10168918 q = 1.6340269 AU P = 9.692 years From 176 observations 1994 Mar. 27-1994 June 5, mean residual 3".41.

Director, Computing Section Syuichi Nakano 2004 Apr. 15

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