OAA computing section circular NK 580 07S1-0180Comet Helin-Alu (1992a) 07S1-0120
The following improved orbital elements, 06F1-001 by S. Nakano, 06F1-000 are from 42 observations 1992 Jan. 9 to Mar. 6. Perturbations by all nine planets and five minor planets were taken into account. The mean residual is +/- 1.13 arc seconds. 06F1-001 Epoch = 06F1-000 1992 June 27.0 06F1-001 TT 06F1-000 06F1-001 T = 06F1-000 1992 July 8.87515 +/- 0.07422 06F1-001 (m.e.) TT 06F1-000 06F1-001 Peri. = 06F1-000 239.95573 +/- 0.05412 06F1-001 Node = 06F1-000 288.88547 +/- 0.01069 06F1-001 (2000.0) 06F1-000 06F1-001 Inc. = 06F1-000 39.22700 +/- 0.02294 06F1-001 q = 06F1-000 3.0132281 +/- 0.0018498 06F1-001 AU 06F1-000 06F1-001 e = 06F1-000 1.0047786 +/- 0.0001871 06F1-001 1/a = 06F1-000 -0.0015859 +/- 0.0000627 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 1992 01 09.49566 08 22 35.00 +05 03 16.0 1.4- 0.6- 675/PL 1992 01 09.52378 08 22 33.86 +05 03 02.7 1.2+ 2.0+ 675/PL 1992 01 10.49375 08 21 49.05 +04 53 52.9 0.0 2.0- 675/PL 1992 01 23.48941 08 11 05.39 +02 57 50.0 ( 1.3+ 2.9+) 372/sk 1992 01 23.49896 08 11 04.90 +02 57 42.4 1.4+ 0.2+ 372/sk 1992 01 23.50903 08 11 04.34 +02 57 37.0 0.9+ 0.1- 372/sk 1992 01 27.57743 08 07 34.24 +02 23 58.7 0.3+ 0.1- 372/sk 1992 01 27.58889 08 07 33.61 +02 23 54.9 0.1- 1.6+ 372/sk 1992 01 29.37170 08 06 01.73 +02 09 37.0 0.3+ 0.8- 675/PL 1992 01 29.39497 08 06 00.56 +02 09 24.8 1.1+ 1.9- 675/PL 1992 01 29.41840 08 05 59.20 +02 09 14.0 0.9- 1.6- 675/PL 1992 01 30.25417 08 05 16.63 +02 02 40.2 0.7+ 0.9- 675/PL 1992 01 31.17031 08 04 30.00 +01 55 31.8 2.3+ 1.6- 675/PL 1992 01 31.37674 08 04 19.02 +01 53 57.2 1.0- 0.5- 675/PL 1992 02 01.61906 08 03 16.00 +01 44 28.7 0.8- 1.6+ 411/kb 1992 02 01.62028 08 03 16.02 +01 44 29.1 0.1+ 2.4+ 372/sk 1992 02 01.62192 08 03 15.77 +01 44 27.4 2.1- 1.6+ 411/kb 1992 02 01.65667 08 03 14.01 +01 44 10.7 1.5- 0.7+ 411/kb 1992 02 01.66483 08 03 13.54 +01 44 06.2 2.2- 0.1- 411/kb 1992 02 01.66832 08 03 13.46 +01 44 05.2 0.7- 0.5+ 411/kb 1992 02 02.35313 08 02 39.04 +01 38 53.4 0.9+ 1.2- 675/PL 1992 02 02.37240 08 02 37.99 +01 38 45.0 0.1+ 0.9- 675/PL 1992 02 02.48104 08 02 32.72 +01 37 55.4 0.1- 1.4- 411/kb 1992 02 02.48644 08 02 32.26 +01 37 53.9 ( 2.9- 0.4-) 411/kb 1992 02 02.49191 08 02 32.25 +01 37 53.5 1.2+ 1.6+ 411/kb 1992 02 04.60868 08 00 46.27 +01 22 11.3 ( 3.0- 1.6-) 372/sk 1992 02 04.62153 08 00 45.82 +01 22 08.8 0.0 1.5+ 372/sk 1992 02 05.65451 07 59 55.00 +01 14 40.5 0.2+ 1.4+ 372/sk 1992 02 06.12359 07 59 32.17 +01 11 17.1 0.7- 0.2- 801/HO 1992 02 06.14454 07 59 31.17 +01 11 08.1 0.1- 0.2- 801/HO 06F1-001 07S1-0120 - continued - 06F1-000 06F1-001 07S1-0180Comet Helin-Alu (1992a) NK 580 - 2 06F1-000 07S1-0120 ------------------------------------------------------------------------- 06F1-001Date/ UT R.A. (2000) Decl. *** O-C *** Code/Obs 06F1-000 06F1-001 h m s ¡ , " " " 06F1-000 1992 02 08.64329 07 57 31.19 +00 53 39.9 0.9- 0.3+ 411/kb 1992 02 08.64978 07 57 30.95 +00 53 38.2 0.2+ 1.3+ 411/kb 1992 02 10.50920 07 56 04.65 +00 40 59.7 2.2+ 2.1- 376/k2 1992 02 10.51007 07 56 04.39 +00 41 01.3 1.3- 0.2- 372/sk 1992 02 10.52072 07 56 03.98 +00 40 57.6 0.3+ 0.5+ 376/k2 1992 02 10.53692 07 56 03.26 +00 40 52.3 1.0+ 1.6+ 376/k2 1992 02 10.54757 07 56 02.60 +00 40 44.6 1.4- 1.8- 897/kj 1992 02 10.57951 07 56 01.47 +00 40 33.3 ( 4.2+ 0.3-) 897/kj 1992 02 25.42928 07 46 18.25 -00 47 16.2 0.8+ 0.3+ 376/k2 1992 02 25.47789 07 46 16.66 -00 47 28.7 ( 0.7+ 3.0+) 376/k2 1992 02 29.78125 07 44 12.13 -01 09 04.7 1.1- 0.1- 540/LZ 1992 02 29.82361 07 44 11.13 -01 09 16.8 1.2+ 0.0 540/LZ 1992 03 01.06793 07 44 04.23 -01 10 20.6 ( 6.8- 6.5+) 801/HO 1992 03 01.08826 07 44 03.58 -01 10 25.6 ( 8.3- 7.4+) 801/HO 1992 03 04.80972 07 42 36.71 -01 27 51.8 0.7- 0.8+ 540/LZ 1992 03 04.85208 07 42 35.85 -01 28 04.5 0.4+ 0.4- 540/LZ 1992 03 05.06545 07 42 31.41 -01 29 01.3 0.2+ 0.2+ 801/HO 1992 03 05.10001 07 42 30.61 -01 29 10.7 0.5- 0.2+ 801/HO 1992 03 06.16285 07 42 09.70 -01 33 57.9 ( 3.2+ 3.1-) 675/PL 1992 03 06.19248 07 42 08.93 -01 34 04.4 0.8+ 1.7- 675/PL ( ) -------- Rejected Obs.
Director, Computing Section Syuichi Nakano 1993 Jan. 9 06F1