OAA computing section circular NK 462 Comet Bowell 1982 I = 1980b
The following improved orbital elements, by S. Nakano, are from 161 observations 1980 February 11 to 1984 July 26. Pertur- bations by Mercury to Pluto were taken into account. The mean residual is +/- 1.13 arc seconds: Epoch = 1982 Mar. 12.0 ET T = 1982 Mar. 12.29342 +/- 0.00036 (m.e.) ET Peri. = 134.88881 +/- 0.00120 Node = 114.05389 +/- 0.00120 1950.0 Inc. = 1.66489 +/- 0.00003 q = 3.3639433 +/- 0.0000016 AU e = 1.0573132 +/- 0.0000046 1/a = -0.0170375 +/- 0.0000014 1/AU The extension orbit is from the above orbital elements: Epoch = 1985 May 15.0 ET T = 1982 Mar. 12.13077 ET Peri. = 134.99646 Node = 114.04564 1950.0 Inc. = 1.66476 q = 3.3703527 AU e = 1.0565452 1/a = -0.0167772 1/AU m1 = 4.0 (k=10) m2 = 6.6 (k=5) There are the residuals in seconds of arc from the above orbital elements in the next pages: - continued - Comet Bowell NK 462-2 Date/ UT R.A. (1950.0) Decl. *** O-C *** Code/Obs. h m s ¡ , " " " 1980 Feb. 11.32292 10 40 40.40 + 9 39 09.8 ( 1.4- 3.2-) 688/bw 11.34653 10 40 39.94 + 9 39 14.7 0.8- 1.4- 688/bw Mar. 13.28333 10 28 58.57 +10 51 06.0 ( 1.2+ 3.1-) 688/bw 13.32153 10 28 57.61 +10 51 12.1 0.1- 2.0- 688/bw 14.25694 10 28 36.72 +10 53 15.8 0.3- 1.8- 688/bw 14.27500 10 28 36.29 +10 53 18.3 0.5- 1.6- 688/bw 16.21042 10 27 53.67 +10 57 30.0 1.1+ 1.5- 688/bw 16.22708 10 27 53.25 +10 57 32.5 0.4+ 1.1- 688/bw 19.23677 10 26 48.10 +11 03 53.2 1.7- 0.0 801/fg 19.61319 10 26 40.18 +11 04 44.7 ( 1.1- 4.8+) 372/sk 19.63611 10 26 39.58 +11 04 45.8 ( 2.7- 3.1+) 372/sk 20.31875 10 26 19.23 +11 06 45.1 (92.2- 37.7+) 323/PR 23.63299 10 25 17.38 +11 12 38.0 0.1+ 1.6- 372/sk 23.66042 10 25 16.57 +11 12 43.6 ( 3.5- 0.8+) 372/sk Apr. 1.21104 10 22 37.41 +11 27 50.4 0.2+ 0.3- 689/FS 7.58576 10 20 56.40 +11 37 14.2 0.5+ 0.2- 323/PR 10.62431 10 20 14.22 +11 41 04.8 1.3- 2.1+ 372/sk 14.17569 10 19 30.74 +11 44 57.1 0.7+ 1.1- 688/LO 16.63611 10 19 04.00 +11 47 18.0 0.2+ 1.6- 372/sk 17.58002 10 18 54.55 +11 48 08.5 0.5- 0.6- 381/ks 17.61126 10 18 54.26 +11 48 09.3 0.2- 1.3- 381/ks 18.09169 10 18 49.84 +11 48 26.2 ( 2.0+ 8.4-) 801/HO 18.57513 10 18 45.16 +11 48 56.8 0.1+ 1.5- 381/ks 20.05988 10 18 32.11 +11 50 06.5 0.6+ 0.5+ 801/HO May 8.17257 10 17 27.10 +11 54 38.7 0.8+ 0.8- 688/bw 10.17735 10 17 30.89 +11 54 07.5 0.1+ 1.7+ 801/HO 15.49792 10 17 51.85 +11 51 38.3 2.7- 1.1+ 323/PR 19.52222 10 18 18.45 +11 48 45.4 0.8+ 1.1+ 323/PR June 6.51056 10 22 01.30 +11 25 51.3 1.9- 0.3- 381/ks Nov. 17.50764 12 05 43.75 + 0 47 01.7 ( 4.3+ 5.4-) 688/LO Dec. 3.80486 12 15 54.06 - 0 14 20.0 0.6+ 1.3- 323/PR 10.78902 12 19 49.78 - 0 37 33.1 0.2+ 0.4+ 381/ks 4 10.84389 12 19 51.56 - 0 37 43.3 0.5+ 0.7+ 381/KS 1981 Jan. 3.60347 12 30 35.90 - 1 38 16.6 0.3- 1.5- 474/JN 6 3.61528 12 30 36.22 - 1 38 16.8 0.8+ 0.4- 474/JN 6 8.75903 12 32 16.98 - 1 47 00.4 0.6+ 0.3- 386/te 9.73194 12 32 34.30 - 1 48 26.8 0.9+ 0.1+ 386/te 17.85278 12 34 35.51 - 1 57 57.3 1.4+ 0.1- 386/te Feb. 10.36119 12 36 15.40 - 1 58 13.3 0.3+ 1.0+ 801/HO 15.36773 12 35 46.42 - 1 52 57.7 0.6+ 0.5+ 675/PL 16.49064 12 35 37.48 - 1 51 31.9 1.2+ 0.8+ 675/PL Mar. 9.27222 12 30 29.19 - 1 10 47.7 1.2+ 1.8- 688/LO 28.28395 12 22 56.09 - 0 17 45.3 0.6+ 0.9+ 801/HO 7 29.51563 12 22 24.35 - 0 14 09.8 0.6+ 1.1+ 394/tk 29.52222 12 22 23.99 - 0 14 09.7 2.2- 0.1+ 394/tk 30.27153 12 22 04.67 - 0 11 59.1 0.3- 0.4- 688/LO 30.31736 12 22 03.48 - 0 11 51.2 0.3+ 0.5- 688/LO 30.51667 12 21 58.33 - 0 11 14.3 0.4- 1.9+ 394/tk 30.55747 12 21 57.23 - 0 11 07.1 0.7- 2.0+ 394/tk Apr. 1.21181 12 21 14.40 - 0 06 22.5 0.2+ 1.2- 688/LO - continued - Comet Bowell NK 462-3 Date/ UT R.A. (1950.0) Decl. *** O-C *** Code/Obs. h m s ¡ , " " " 1981 Apr. 1.25069 12 21 13.38 - 0 06 15.5 0.4+ 1.0- 688/LO 2.19861 12 20 48.68 - 0 03 30.8 1.9- 0.2- 687/NA 3.29265 12 20 20.43 - 0 00 21.4 1.4+ 1.3+ 801/HO 7 3.53818 12 20 14.02 + 0 00 22.9 0.4- 0.3+ 474/JN 3.54803 12 20 13.79 + 0 00 24.7 0.0 0.4+ 474/JN 5.19236 12 19 31.52 + 0 04 58.8 0.2- 2.3- 688/LO 5.23611 12 19 30.38 + 0 05 06.8 0.0 1.6- 688/LO 6.57847 12 18 55.95 + 0 08 54.6 0.9- 0.5+ 879/fr 6.58854 12 18 55.74 + 0 08 56.6 0.1- 0.9+ 879/fr 8.11958 12 18 16.95 + 0 13 12.1 0.0 0.0 808/YS 8.14797 12 18 16.62 + 0 13 18.0 ( 6.1+ 1.2+) 808/YS 9.20556 12 17 49.68 + 0 16 04.3 0.3- 2.6- 688/LO 9.22292 12 17 49.37 + 0 16 08.9 1.8+ 0.8- 688/LO 9.24097 12 17 48.76 + 0 16 10.0 0.4- 2.6- 688/LO 9.25764 12 17 48.41 + 0 16 13.8 0.8+ 1.5- 688/LO 23.53507 12 12 23.84 + 0 50 18.7 2.4- 0.3- 879/fr 23.54045 12 12 23.67 + 0 50 19.2 ( 3.3- 0.4-) 879/fr 25.20000 12 11 51.89 + 0 53 33.4 1.1+ 0.3+ 687/NA 25.20764 12 11 51.52 + 0 53 34.2 2.0- 0.4+ 707/ev 28.54514 12 10 51.89 + 0 59 28.6 ( 4.0+ 0.3-) 394/tk 28.56181 12 10 51.45 + 0 59 31.4 1.8+ 0.8+ 394/tk 28.58056 12 10 50.95 + 0 59 33.0 0.7- 0.2+ 879/fr 28.58576 12 10 50.90 + 0 59 35.8 0.1- 2.5+ 879/fr 29.55972 12 10 35.05 + 1 01 05.7 ( 6.1+ 1.8-) 394/tk 29.57292 12 10 34.54 + 1 01 12.1 ( 1.9+ 3.3+) 394/tk May 2.15694 12 09 54.14 + 1 04 57.2 0.3- 2.1- 688/LO 2.25208 12 09 52.66 + 1 05 05.1 0.3- 2.1- 688/LO 5.03377 12 09 13.98 + 1 08 38.1 ( 3.4- 0.7-) 491/CN 5.93097 12 09 02.96 + 1 09 38.3 0.7- 0.8- 491/CN 7.02621 12 08 49.94 + 1 10 47.3 0.2- 0.0 491/CN 23.13544 12 07 23.67 + 1 15 28.0 ( 3.4+ 3.9+) 801/HO June 2.26563 12 08 15.68 + 1 06 12.8 1.1- 0.3- 707/ev 3.98848 12 08 33.20 + 1 03 44.8 0.5+ 2.0+ 491/CN 4.93458 12 08 43.76 + 1 02 12.8 0.6- 0.6- 491/CN 6.14887 12 08 58.49 + 1 00 14.0 0.4- 2.8+ 801/HO 23.22778 12 14 32.39 + 0 17 46.1 1.2- 0.6- 707/ev 25.20729 12 15 25.88 + 0 11 15.4 1.8- 0.8- 707/ev 1 Sept. 5.32593 13 16 10.44 - 6 33 15.5 ( 6.5- 15.6+) 474/JN 1 5.34363 13 16 11.70 - 6 33 26.0 ( 5.9- 12.7+) 474/JN 1 6.31127 13 17 19.05 - 6 40 30.7 ( 0.6- 4.9+) 474/JN 1 6.32117 13 17 19.98 - 6 40 37.0 ( 3.1+ 2.8+) 474/JN 1 Dec. 23.57536 15 51 23.50 -18 55 52.6 0.1+ 0.5- 675/PL 1982 Jan. 9.85104 16 18 22.20 -20 10 35.0 ( 8.8- 3.4+) 372/sk 9.86007 16 18 23.40 -20 10 38.0 ( 3.7- 2.5+) 372/sk 15.56356 16 27 10.77 -20 31 13.7 1.2- 0.8+ 675/PL 15.56981 16 27 11.43 -20 31 14.8 0.0 1.0+ 675/PL 30.51389 16 49 39.19 -21 15 22.2 1.4- 0.1- 707/ev Feb. 20.51944 17 19 01.10 -21 54 36.4 2.0- 0.6- 688/LO 28.49410 17 29 12.28 -22 03 20.9 0.2+ 0.3- 707/ev Mar. 21.40284 17 52 27.32 -22 14 00.6 1.2+ 1.1+ 809/ES - continued - Comet Bowell NK 462-4 Date/ UT R.A. (1950.0) Decl. *** O-C *** Code/Obs. h m s ¡ , " " " 1982 Mar. 21.40768 17 52 27.56 -22 14 00.8 0.7+ 0.9+ 809/ES 21.41219 17 52 27.81 -22 14 00.7 0.6+ 1.1+ 809/ES 22.38902 17 53 24.37 -22 14 13.1 1.0- 1.1- 809/ES 22.39248 17 53 24.57 -22 14 13.0 0.9- 1.0- 809/ES 22.39595 17 53 24.76 -22 14 13.0 1.0- 0.9- 809/ES 22.47951 17 53 29.64 -22 14 16.8 0.0 1.1- 707/ev 23.40153 17 54 22.23 -22 14 22.3 0.2- 1.0- 809/ES 23.40500 17 54 22.41 -22 14 22.2 0.4- 0.9- 809/ES 23.40846 17 54 22.56 -22 14 22.1 1.0- 0.8- 809/ES 26.40650 17 57 08.38 -22 14 41.5 0.4+ 0.6- 809/ES 26.40996 17 57 08.56 -22 14 41.2 0.3+ 0.2- 809/ES 26.41342 17 57 08.75 -22 14 41.1 0.5+ 0.1- 809/ES 28.40173 17 58 54.07 -22 14 47.3 0.9+ 0.9+ 809/ES 28.40519 17 58 54.25 -22 14 47.2 1.0+ 1.0+ 809/ES 28.40865 17 58 54.46 -22 14 47.6 1.4+ 0.6+ 809/ES 29.40453 17 59 45.62 -22 14 50.0 0.7- 0.3+ 809/ES 29.40730 17 59 45.80 -22 14 50.1 0.1- 0.2+ 809/ES 29.41077 17 59 45.96 -22 14 49.8 0.3- 0.5+ 809/ES 31.39700 18 01 25.37 -22 14 50.5 1.1- 1.3+ 809/ES 31.40046 18 01 25.52 -22 14 51.0 1.3- 0.8+ 809/ES 31.40392 18 01 25.70 -22 14 51.2 1.2- 0.6+ 809/ES Apr. 1.41979 18 02 15.44 -22 14 54.3 2.7+ 0.5- 688/LO 23.74558 18 15 47.16 -22 13 16.0 0.3+ 0.3+ 474/JN 24.65818 18 16 08.60 -22 13 13.2 0.4- 0.6+ 474/JN 26.72824 18 16 53.64 -22 13 09.2 0.6+ 1.1+ 413/SS 28.47708 18 17 27.78 -22 13 11.1 1.2+ 0.8+ 688/LO 29.37535 18 17 43.95 -22 13 11.4 0.1+ 0.5+ 707/ev May 21.06276 18 19 39.17 -22 16 31.4 0.4- 0.3- 491/CN 21.36563 18 19 37.37 -22 16 34.5 1.6+ 2.2+ 688/LO 22.08358 18 19 32.25 -22 16 51.3 0.1- 0.6- 491/CN 27.02465 18 18 45.20 -22 18 37.4 2.9+ 0.7+ 033/KR 27.26910 18 18 42.25 -22 18 42.8 0.9+ 0.6+ 707/ev June 18.00016 18 11 49.58 -22 29 38.2 0.3+ 1.2+ 491/CN 18.97006 18 11 26.54 -22 30 11.1 0.4- 1.5+ 491/CN 20.26424 18 10 55.62 -22 30 57.1 0.2- 0.0 688/LO 21.24653 18 10 31.99 -22 31 30.9 0.5- 0.4+ 707/ev 25.23053 18 08 55.83 -22 33 50.7 1.1- 0.3- 801/HO 27.23351 18 08 07.82 -22 35 01.9 2.4- 1.3- 801/HO July 12.19340 18 02 47.94 -22 43 41.6 2.4+ 0.5- 688/LO 12.24167 18 02 46.81 -22 43 43.4 0.1- 0.5- 707/ev 13.94892 18 02 17.18 -22 44 40.6 0.6+ 0.6+ 491/CN 14.96904 18 02 00.30 -22 45 15.3 0.5+ 0.6+ 491/CN 24.54865 17 59 59.37 -22 50 32.3 0.1- 0.2+ 474/JN 24.55696 17 59 59.31 -22 50 32.2 0.2+ 0.6+ 474/JN 25.14883 17 59 54.26 -22 50 58.4 1.5- 1.7- 801/HO 25.58741 17 59 50.72 -22 51 06.9 0.6- 0.2- 474/JN 26.54619 17 59 43.74 -22 51 38.8 0.3+ 0.3- 474/JN Aug. 13.87744 18 00 15.70 -23 01 27.4 0.9- 1.5- 491/CN 17.14271 18 00 56.19 -23 03 03.0 1.6+ 0.2- 688/LO 26.04196 18 03 39.65 -23 07 09.1 0.3+ 0.7- 801/HO - continued - Comet Bowell NK 462-5 Date/ UT R.A. (1950.0) Decl. *** O-C *** Code/Obs. h m s ¡ , " " " 1982 Sept.13.12535 18 13 00.12 -23 12 56.8 0.6- 1.0+ 688/LO 22.16910 18 19 23.51 -23 13 53.1 2.1+ 1.0- 707/ev 1 Oct. 17.08576 18 41 43.57 -23 05 28.2 0.6- 0.9+ 688/LO 3 17.97006 18 42 37.42 -23 04 50.3 1.7- 0.4- 801/HO Nov. 7.06007 19 04 28.84 -22 42 04.5 1.6- 0.6- 707/ev 4 9.95596 19 07 49.24 -22 37 28.5 0.4- 0.1+ 801/HO 15.06215 19 13 48.32 -22 28 38.2 ( 5.8+ 5.3-) 688/LO Dec. 6.09690 19 39 16.93 -21 40 27.3 1.3- 0.0 675/PL 1983 June 8.40764 22 23 03.51 -11 00 44.5 0.9- 0.3+ 707/ev July 6.10646 22 22 55.51 -11 10 16.0 2.1+ 1.5- 491/CN 1 7.02650 22 22 46.56 -11 11 21.7 1.4+ 0.5+ 491/CN 2 8.41943 22 22 31.84 -11 13 10.2 0.6- 0.1+ 707/ev 10.29365 22 22 10.40 -11 15 45.4 1.5- 0.3+ 801/HO 17.35556 22 20 31.96 -11 27 09.1 1.0+ 0.7- 688/LO 17.40972 22 20 31.09 -11 27 14.8 1.4+ 0.6- 688/LO Aug. 13.32639 22 10 58.50 -12 26 53.2 0.3- 0.7- 688/LO 13.35764 22 10 57.80 -12 26 59.3 1.1+ 2.2- 688/LO 13.95712 22 10 42.97 -12 28 26.9 2.1+ 1.0- 046/KL 13.97135 22 10 42.55 -12 28 30.5 1.2+ 2.4- 046/KL 14.96639 22 10 18.06 -12 30 47.4 ( 6.5+ 7.7+) 046/KL 14.98052 22 10 17.24 -12 31 00.1 0.2- 2.9- 046/KL 15.98116 22 09 52.27 -12 33 22.6 1.3+ 2.5+ 046/KL 15.99528 22 09 51.73 -12 33 26.1 1.3- 1.1+ 046/KL 16.20588 22 09 46.39 -12 33 58.7 2.3- 0.4- 801/HO 31.17465 22 03 33.38 -13 09 42.2 1.5+ 0.5+ 688/LO 31.20417 22 03 32.54 -13 09 47.9 0.1- 1.1- 688/LO Sept. 4.25770 22 01 56.27 -13 18 43.3 0.7- 0.8- 801/HO 7.21181 22 00 49.01 -13 24 55.3 1.3+ 0.9- 707/ev Oct. 4.08274 21 53 16.30 -14 04 35.7 1.5- 1.6+ 801/HO 3 4.10278 21 53 16.38 -14 04 40.3 1.9+ 2.1- 688/LO 4.18681 21 53 15.38 -14 04 44.3 0.3+ 1.9- 688/LO 11.12639 21 52 19.74 -14 09 09.3 0.4- 2.7- 688/LO Nov. 28.13822 21 58 46.77 -13 30 43.7 1.6- 2.8- 675/PL 1984 July 26.30629 23 36 01.14 - 4 11 00.5 0.0 1.2- 801/HO ( ) -------- Rejected Obs.
Director, Computing Section Syuichi Nakano 1984 December 2