OAA computing section circular NK 567 Comet McNaught-Russell (1991w)

The following improved orbital elements, by S. Nakano, are from 20 observations 1991 Sept. 3 to Nov. 26. Perturbations by all nine planets and five minor planets were taken into account. The mean residual is +/- 1.26 arc seconds. Epoch = 1990 Nov. 5.0 TT T = 1990 Nov. 13.88977 +/- 1.29035 (m.e.) TT Peri. = 149.37907 +/- 0.11109 Node = 150.11860 +/- 0.00275 (2000.0) Inc. = 104.50158 +/- 0.01554 q = 6.9902723 +/- 0.0025004 AU e = 0.9983727 +/- 0.0021787 -1 1/a = 0.0002328 +/- 0.0003117 AU The following residuals in seconds of arc are from the above orbital elements: Date/ UT R.A. (2000) Decl. *** O-C *** Code/Obs. h m s ¡ , " " " 1991 09 03.53137 21 58 04.17 -01 38 26.5 0.6- 2.4- 413/SS 1991 09 03.57650 21 58 02.88 -01 38 45.1 2.0+ 1.6+ 413/SS 1991 09 04.60417 21 57 29.99 -01 47 23.1 0.9+ 1.7- 413/SS 1991 09 04.65301 21 57 28.40 -01 47 44.1 0.7+ 1.7+ 413/SS 1991 09 05.55454 21 56 59.80 -01 55 18.6 0.0 1.2- 413/SS 1991 09 06.55718 21 56 28.22 -02 03 40.8 0.4+ 1.2- 413/SS 1991 09 07.63473 21 55 54.42 -02 12 39.2 0.5- 1.4+ 372/sk 1991 09 07.64827 21 55 53.97 -02 12 45.1 0.8- 2.3+ 372/sk 1991 09 08.60880 21 55 24.14 -02 20 47.2 0.9- 0.7- 413/SS 1991 09 09.60058 21 54 53.54 -02 29 04.1 1.7- 1.8- 413/SS 1991 09 09.61354 21 54 53.28 -02 29 09.0 0.2+ 1.2+ 372/sk 1991 09 13.51047 21 52 55.87 -03 01 29.6 0.8- 0.1- 413/SS 1991 09 28.46737 21 46 15.77 -05 01 52.4 1.3+ 2.2+ 413/SS 1991 09 29.50706 21 45 51.33 -05 09 55.0 0.4- 2.5+ 413/SS 1991 10 10.99162 21 41 58.79 -06 35 04.5 0.6+ 1.8- 801/HO 1991 10 11.01090 21 41 58.41 -06 35 12.9 0.0 2.0- 801/HO 1991 11 08.48428 21 37 36.87 -09 28 29.8 0.5- 0.1+ 413/SS 1991 11 08.48907 21 37 36.91 -09 28 32.4 0.2+ 1.1- 413/SS 1991 11 26.50325 21 38 44.07 -10 48 15.9 0.1+ 0.5+ 413/SS 1991 11 26.50762 21 38 44.08 -10 48 16.8 0.2- 0.6+ 413/SS ( ) -------- Rejected Obs.

Director, Computing Section Syuichi Nakano 1991 December 24

Back to Nakano Note Page