OAA computing section circular NK 576 07S1-0180Comet Helin-Lawrence (1991l) 07S1-0120
The following improved orbital elements, 06F1-001 by S. Nakano, 06F1-000 are from 97 observations 1991 Feb. 23 to 1992 Sept. 30. Perturbations by all nine planets and five minor planets were taken into account. The mean residual is +/- 0.79 arc second. 06F1-001 Epoch = 06F1-000 1992 Jan. 19.0 06F1-001 TT 06F1-000 06F1-001 T = 06F1-000 1992 Jan. 20.02703 +/- 0.00014 06F1-001 (m.e.) TT 06F1-000 06F1-001 Peri. = 06F1-000 271.15922 +/- 0.00004 06F1-001 Node = 06F1-000 11.83494 +/- 0.00002 06F1-001 (2000.0) 06F1-000 06F1-001 Inc. = 06F1-000 95.45648 +/- 0.00008 06F1-001 q = 06F1-000 1.5177210 +/- 0.0000011 06F1-001 AU 06F1-000 06F1-001 e = 06F1-000 1.0004313 +/- 0.0000031 06F1-001 1/a = 06F1-000 -0.0002842 +/- 0.0000020 06F1-001 AUs1-1s0 06F1-000 The following residuals in seconds of arc are from the above orbital elements: 06F1-001Date/ UT R.A. (2000) Decl. *** O-C *** Code/Obs 06F1-000 06F1-001 h m s ¡ , " " " 06F1-000 1991 02 23.64788 13 55 26.52 +07 55 14.0 ( 5.1+ 0.0 ) 875/YO 1991 02 23.74543 13 55 22.04 +07 55 23.7 0.3- 0.2- 875/YO 1991 03 17.40191 13 34 40.62 +08 36 53.5 ( 5.6+ 3.0-) 675/PL 1991 03 17.42483 13 34 38.64 +08 36 55.8 ( 1.4+ 3.4-) 675/PL 1991 03 19.59856 13 31 56.48 +08 41 05.4 1.1- 0.2+ 474/JN 1991 03 19.61708 13 31 55.11 +08 41 07.5 0.3- 0.2+ 474/JN 1991 03 19.69248 13 31 49.33 +08 41 16.4 0.7- 1.4+ 413/SS 1991 03 19.72083 13 31 47.59 +08 41 16.5 ( 4.6+ 1.7-) 323/PR 1991 03 20.64549 13 30 36.31 +08 42 53.7 0.2- 1.1- 372/sk 1991 03 20.65486 13 30 35.67 +08 42 56.8 1.2+ 1.0+ 372/sk 1991 03 20.70041 13 30 32.00 +08 43 04.1 0.4+ 0.4+ 413/SS 1991 03 20.77361 13 30 26.32 +08 43 07.7 0.7+ 0.7- 372/sk 1991 03 21.18516 13 29 54.41 +08 43 52.0 0.1+ 0.5+ 801/HO 1991 03 21.19804 13 29 53.40 +08 43 53.4 0.2+ 0.5+ 801/HO 1991 03 21.23375 13 29 50.91 +08 43 56.1 ( 3.8+ 0.2-) 657/VC 1991 03 21.25597 13 29 49.05 +08 43 59.4 2.1+ 0.7+ 657/VC 1991 03 21.53387 13 29 27.02 +08 44 32.2 1.0- 0.3+ 474/JN 1991 03 21.54567 13 29 26.15 +08 44 34.0 0.0 0.9+ 474/JN 1991 03 23.60451 13 26 41.87 +08 47 57.4 0.1+ 0.1- 372/sk 1991 03 23.61319 13 26 41.10 +08 47 57.4 0.7- 0.9- 372/sk 1991 03 23.77222 13 26 28.05 +08 48 13.2 0.5- 0.6- 372/sk 1991 04 03.57292 13 10 47.10 +09 01 25.2 0.4+ 0.7- 372/sk 1991 04 03.77552 13 10 28.19 +09 01 34.0 0.3+ 0.7- 372/sk 1991 04 04.89498 13 08 44.53 +09 02 18.3 1.2+ 0.7- 046/KL 1991 04 04.90916 13 08 43.29 +09 02 18.3 ( 2.5+ 1.2-) 046/KL 1991 04 05.50532 13 07 47.50 +09 02 43.9 0.8+ 0.0 413/SS 1991 04 08.30451 13 03 22.71 +09 03 45.6 0.8+ 0.5+ 675/PL 1991 04 08.32465 13 03 20.74 +09 03 45.4 0.4+ 0.1+ 675/PL 92 19 50 50.27 +12 29 04.0 ( 2.5- 8.2-) 046/KL 1992 09 26.81215 19 50 50.38 +12 28 57.9 ( 2.1- 2.3+) 046/KL 06F1-001 07S1-0120 - continued - 06F1-000 06F1-001 07S1-0180Comet Shoemaker-Levy (1991 XXIV) NK 575 - 9 06F1-000 07S1-0120 ------------------------------------------------------------------------- 06F1-001Date/ UT R.A. (2000) Decl. *** O-+41 08 23.1 1.1- 0.6+ 372/sk 1992 06 30.86667 20 54 10.38 +41 06 16.6 0.8+ 1.0+ 104/te 1992 06 30.87292 20 54 09.96 +41 06 12.4 0.7+ 0.1+ 104/te 1992 07 01.29110 20 53 42.69 +41 02 28.8 0.3+ 0.7+ 801/HO 1992 07 01.30979 20 53 41.46 +41 02 18.7 0.3+ 0.8+ 801/HO 1992 07 02.92361 20 51 56.01 +40 47 13.2 1.0+ 1.7+ 104/te 1992 07 02.93067 20 51 55.69 +40 47 08.3 ( 2.7+ 0.9+) 104/te 1992 07 03.89757 20 50 51.06 +40 37 38.2 1.2- 1.4+ 540/LZ 1992 07 03.90868 20 50 50.30 +40 37 31.0 1.3- 0.8+ 540/LZ 1992 07 03.91979 20 50 49.61 +40 37 24.9 0.6- 1.3+ 540/LZ 1992 07 07.66806 20 46 34.57 +39 57 16.1 0.4- 0.3+ 372/sk 1992 07 07.67778 20 46 33.87 +39 57 10.0 0.6- 0.8+ 372/sk 1992 07 09.76586 20 44 08.57 +39 32 29.6 0.5- 0.4+ 897/kj 1992 07 19.53403 20 32 37.88 +37 15 22.9 0.9- 0.1- 376/k2 1992 07 19.53987 20 32 37.62 +37 15 16.6 1.0+ 0.9- 376/k2 1992 07 24.88021 20 26 24.61 +35 45 35.8 0.5- 0.6+ 540/LZ 1992 07 24.89132 20 26 23.83 +35 45 23.0 0.6- 0.4- 540/LZ 1992 07 24.90243 20 26 22.96 +35 45 11.1 1.7- 0.6- 540/LZ 1992 07 24.91354 20 26 22.32 +35 45 00.1 0.1- 0.2+ 540/LZ 1992 07 26.21206 20 24 53.45 +35 21 41.7 0.0 0HO 1991 05 12.04425 08 49 31.31 +21 13 57.3 0.1+ 0.2- 801/HO 1991 05 12.06608 08 49 31.82 +21 14 08.0 0.2+ 0.2- 801/HO 1991 05 13.16632 08 49 58.81 +21 23 08.2 0.7+ 0.8+ 675/PL 1991 05 13.21146 08 49 59.92 +21 23 28.9 0.8+ 0.3- 675/PL 1991 05 14.90764 08 50 43.98 +21 37 01.9 0.2- 0.4- 595/FI 1991 05 14.92153 08 50 44.23 +21 37 11.0 ( 1.9- 2.2+) 595/FI 06F1-001 07S1-0120 - continued - 06F1-000 06F1-001 07S1-0180Comet Shoemaker-Levy (1991 XXIV) NK 575 - 3 06F1-000 07S1-0120 ------------------------------------------------------------------------- 06F1-001Date/ UT R.A. (2000) Decl. *** O-C *** Code/Obs 06F1-000 06F1-001 h m s ¡ , " " " 06F1-000 1991 11 04.81343 13 28 02.83 +34 19 35.7 ( 3.4- 2.3-) 411/kb 1991 11 04.81360 13 28 03.23 +34 19 37.9 1.1+ 0.2- 897/kj 1991 11 04.81525 13 28 03.29 +34 19 37.1 1.7- 1.6- 411/kb 1991 11 04.82138 13 28 04.34 +34 19 40.1 2.0- 0.8- 411/kb 1991 11 04.82626 13 28 05.24 +34 19 41.9 1.5- 0.8- 411/kb 1991 11 10.82883 13 46 04.97 +34 56 14.9 ( 2.9- 1.1-) 411/kb 1991 11 10.83017 13 46 05.32 +34 56 15.3 1.6- 1.2- 411/kb 1991 11 10.83112 13 46 05.53 +34 56 15.3 1.2- 1.6- 411/kb 1991 11 10.83226 13 46 05.75 +34 56 16.6 1.1- 0.7- 411/kb 1991 11 20.83665 14 17 54.42 +35 58 47.3 1.2- 1.7- 411/kb 1991 11 20.83970 14 17 55.06 +35 58 49.0 0.7- 1.1- 411/kb 1991 11 20.84159 14 17 55.30 +35 58 49.4 ( 2.3- 1.5-) 411/kb 1991 12 03.51128 15 01 16.61 +37 16 13.6 0.6- 1.4- 675/PL 1991 12 03.54472 15 01 23.78 +37 16 25.3 0.3+ 1.9- 675/PL 1991 12 03.85055 15 02 28.78 +37 18 14.0 0.1- 0.6- 411/kb 1991 12 03.85149 15 02 28.93 +37 18 15.2 0.7- 0.3+ 411/kb 1991 12 03.85330 15 02 29.28 +37 18 14.8 1.1- 0.7- 411/kb 1991 12 03.85422 15 02 29.50 +37 18 16.2 0.8- 0.3+ 411/kb 1991 12 03.85501 15 02 29.76 +37 18 15.7 0.3+ 0.5- 411/kb 1991 12 03.85557 15 02 29.82 +37 18 15.4 0.4- 1.0- 411/kb 1991 12 03.85668 15 02 29.99 +37 18 17.2 1.2- 0.4+ 411/kb 1991 12 05.43947 15 08 08.16 +37 27 25.7 0.8- 1.1- 801/HO 1991 12 05.44235 15 08 08.77 +37 27 26.2 0.9- 1.6- 801/HO 1991 12 06.85468 15 13 12.43 +37 35 30.9 2.0- 0.4- 411/kb 1991 12 06.85568 15 13 12.70 +37 35 30.3 1.4- 1.3- 411/kb 1991 12 06.85753 15 13 13.07 +37 35 31.1 1.7- 1.2- 411/kb 1991 12 06.85847 15 13 13.45 +37 35 31.1 0.4+ 1.5- 411/kb 1991 12 06.86146 15 13 13.98 +37 35 33.3 0.9- 0.3- 411/kb 1991 12 15.85315 15 46 04.01 +38 23 11.2 0.1- 1.4- 411/kb 1991 12 15.85806 15 46 05.17 +38 23 14.0 0.8+ 0.1- 411/kb 1991 12 15.86014 15 46 05.46 +38 23 14.6 1.2- 0.2- 411/kb 1991 12 16.82870 15 49 40.75 +38 27 55.6 1.1+ 0.5- 897/kj 1991 12 16.84745 15 49 44.86 +38 28 02.2 0.5+ 0.5+ 897/kj 1991 12 18.81422 15 57 02.72 +38 37 15.3 0.0 0.3+ 411/kb 1991 12 18.81601 15 57 03.09 +38 37 15.4 0.3- 0.1- 411/kb 1991 12 18.81694 15 57 03.27 +38 37 15.6 0.6- 0.2- 411/kb 1991 12 18.81785 15 57 03.52 +38 37 15.6 0.1- 0.4- 411/kb 1991 12 18.81973 15 57 03.91 +38 37 16.8 0.4- 0.2+ 411/kb 1991 12 18.82063 15 57 04.11 +38 37 17.1 0.4- 0.3+ 411/kb 1991 12 19.85714 16 00 55.39 +38 41 58.3 0.2- 0.7- 411/kb 1991 12 19.85810 16 00 55.63 +38 41 58.3 0.1+ 0.9- 411/kb 1991 12 19.85992 16 00 56.02 +38 41 59.0 0.1- 0.7- 411/kb 1991 12 19.86083 16 00 56.23 +38 41 58.8 0.0 1.2- 411/kb 1991 12 19.86255 16 00 56.59 +38 41 59.7 0.3- 0.8- 411/kb 1991 12 19.86435 16 00 57.01 +38 42 00.5 0.0 0.5- 411/kb 1992 01 01.45514 16 47 49.52 +39 29 15.0 0.3- 0.3- 801/HO 1992 01 01.45739 16 47 50.04 +39 29 15.4 0.1- 0.4- 801/HO 1992 01 02.45986 16 51 32.34 +39 32 14.4 0.9+ 0.1+ 801/HO 1992 01 02.46231 16 51 32.89 +39 32 14.8 1.0+ 0.0 801/HO 1992 01 03.22095 16 54 20.65 +39 34 24.1 0.5+ 0.9- 098/CD 06F1-001 07S1-0120 - continued - 06F1-000 06F1-001 07S1-0180Comet Shoemaker-Levy (1991 XXIV) NK 575 - 4 06F1-000 07S1-0120 ---------------------------------------------------------+ 1.2+ 012/UC 1986 11 29.19035 03 05 00.37 +27 59 03.2 2.0+ 0.2- 657/VC 1986 11 29.54676 03 02 33.00 +27 53 59.6 0.1+ 0.2+ 399/ue 1986 11 29.55365 03 02 30.07 +27 53 53.2 0.9- 0.2- 399/ue 1986 11 29.58334 03 02 18.43 +27 53 31.0 ( 7.5+ 2.6+) 894/ms 1986 11 29.62744 03 01 59.93 +27 52 52.3 ( 4.6+ 2.7+) 894/ms 1986 11 29.87187 03 00 19.43 +27 49 12.9 1.5+ 0.9+1- 801/HO ( ) -------- Rejected Obs.
Director, Computing Section Syuichi Nakano 1993 Jan. 9 06F1