OAA computing section circular NK 461 Comet Shoemaker 1983p
The following improved orbital elements, by S. Nakano, are from 76 observations 1983 September 7 to 1984 June 26. Pertur- bations by Mercury to Pluto were taken into account. The mean residuals is +/- 0.99 arc seconds: Epoch = 1983 Dec. 12.0 ET T = 1983 Nov. 23.80341 +/- 0.00413 (m.e.) ET Peri. = 176.03906 +/- 0.00089 Node = 163.98421 +/- 0.00069 1950.0 Inc. = 137.60356 +/- 0.00026 q = 3.3448479 +/- 0.0000155 AU e = 1.0000379 +/- 0.0000444 1/a = -0.0000113 +/- 0.0000133 1/AU The extension orbit is from the above orbital elements: Epoch = 1985 May 15.0 ET T = 1983 Nov. 23.70620 ET Peri. = 176.07685 Node = 164.02413 1950.0 Inc. = 137.62215 q = 3.3453952 AU e = 0.9992375 1/a = +0.0002279 m1 = 6.2 (k=10) There are the residuals in seconds of arc from the above orbital elements in the next pages: - continued - Comet Shoemaker (1983p) NK 461-2 Date/ UT R.A. (1950.0) Decl. *** O-C *** Code/Obs. h m s ¡ , " " " 1983 Sept. 7.31387 23 53 13.19 +20 37 55.8 0.3+ 1.0+ 675/PL 7.33193 23 53 10.88 +20 37 32.2 0.9- 0.9+ 675/PL 14.26318 23 38 51.90 +17 56 41.6 1.8+ 1.2- 688/LO 14.29374 23 38 47.95 +17 55 57.1 0.6+ 0.7- 688/LO 14.30486 23 38 46.37 +17 55 39.6 2.2- 1.9- 675/PL 14.32569 23 38 43.92 +17 55 12.3 0.5+ 1.5+ 675/PL 15.24298 23 36 48.96 +17 32 33.2 ( 1.1+ 3.9+) 801/HO 15.74583 23 35 45.62 +17 19 56.5 1.9- 0.3+ 372/sk 16.18368 23 34 51.07 +17 08 55.5 0.6- 0.2- 707/ev 16.19176 23 34 49.73 +17 08 46.4 ( 3.7- 2.9+) 801/HO 16.50068 23 34 11.3 +17 01 02 0.4+ 1.9+ 474/JN Y 16.56608 23 34 03.1 +16 59 22 1.5+ 1.2+ 474/JN Y 18.03006 23 30 59.48 +16 21 55.5 ( 0.7- 4.1+) 020/NI 18.03768 23 30 58.63 +16 21 39.8 0.9+ 0.2+ 020/NI 18.20556 23 30 37.70 +16 17 20.9 0.2- 1.0+ 707/ev 19.01347 23 28 56.26 +15 56 20.2 ( 3.6- 2.0-) 020/NI 19.02022 23 28 55.72 +15 56 10.8 0.9+ 0.9- 020/NI 19.11111 23 28 44.46 +15 53 51.8 ( 3.0+ 2.8+) 984/ri 26.11667 23 14 20.50 +12 45 31.3 ( 2.7- 0.3-) 707/ev 28.11111 23 10 21.11 +11 50 27.3 ( 2.8- 0.3+) 688/LO 28.12326 23 10 19.81 +11 50 04.6 0.2- 2.0- 707/ev 28.21582 23 10 08.86 +11 47 40.5 ( 1.6+ 8.2+) 657/VC 29.78148 23 07 03.81 +11 04 00.8 0.3- 1.9- 046/KL 29.79572 23 07 02.22 +11 03 39.2 1.0+ 0.2+ 046/KL 30.24444 23 06 09.36 +10 50 59.0 ( 3.4- 10.7-) 657/VC Oct. 1.78681 23 03 10.99 +10 08 11.3 0.8- 0.1+ 046/KL 1.80093 23 03 09.48 +10 07 47.0 1.0+ 0.6- 046/KL 3.89236 22 59 11.98 + 9 09 30.5 1.5- 1.8- 552/SV 3.91944 22 59 09.03 + 9 08 48.4 0.2+ 1.3+ 552/SV 3.92951 22 59 07.90 + 9 08 33.1 ( 0.3+ 2.8+) 552/SV 3.94479 22 59 06.16 + 9 08 04.5 0.1+ 0.0 046/KL 3.95903 22 59 04.40 + 9 07 40.2 2.1- 0.6- 046/KL 4.83472 22 57 27.20 + 8 43 20.0 0.6- 0.1- 017/HH 5.06957 22 57 01.13 + 8 36 50.1 0.6+ 0.9+ 491/CN 5.11420 22 56 56.25 + 8 35 39.1 0.9- 0.1- 808/YS 5.13983 22 56 53.43 + 8 34 57.1 0.3- 0.6+ 808/YS 5.78322 22 55 43.35 + 8 17 05.9 ( 5.3+ 4.4+) 046/KL 5.79740 22 55 41.52 + 8 16 37.0 1.3+ 0.9- 046/KL 5.88993 22 55 31.20 + 8 14 04.0 1.0- 0.1- 017/HH 5.94965 22 55 24.60 + 8 12 25.0 1.5- 0.1+ 017/HH 6.07481 22 55 10.94 + 8 08 58.2 0.5- 0.9+ 491/CN 6.09416 22 55 09.05 + 8 08 29.8 0.1+ 0.3+ 808/YS 6.12117 22 55 06.07 + 8 07 45.7 0.0 1.0+ 808/YS 7.81351 22 52 04.65 + 7 21 00.5 2.5+ 1.6+ 494/mn 8.06342 22 51 37.97 + 7 14 11.9 0.5- 0.1+ 808/YS 8.11051 22 51 32.98 + 7 12 55.0 0.1+ 0.8+ 808/YS 8.14168 22 51 29.62 + 7 12 01.6 0.4- 1.3- 808/YS 9.10952 22 49 48.41 + 6 45 32.4 0.3+ 0.6- 808/YS 9.12434 22 49 46.89 + 6 45 06.4 0.7+ 1.9+ 801/HO 9.13611 22 49 45.67 + 6 44 41.9 ( 1.3- 3.7-) 675/PL - continued - Comet Shoemaker (1983p) NK 461-3 Date/ UT R.A. (1950.0) Decl. *** O-C *** Code/Obs. h m s ¡ , " " " 1983 Oct. 9.13722 22 49 45.46 + 6 44 47.7 0.3- 0.1+ 808/YS 9.18819 22 49 40.43 + 6 43 20.2 2.0+ 0.1- 675/PL 9.20972 22 49 38.09 + 6 42 45.7 0.8+ 0.6+ 675/PL 9.24722 22 49 34.08 + 6 41 43.6 0.3- 0.1- 675/PL 9.27291 22 49 31.38 + 6 41 02.1 0.4- 0.5+ 675/PL 10.08843 22 48 07.53 + 6 18 53.2 0.7- 0.4- 808/YS 10.11267 22 48 05.07 + 6 18 14.3 0.0 0.2+ 808/YS 10.82951 22 46 52.43 + 5 58 44.4 0.4+ 0.0 494/mn 11.10371 22 46 24.71 + 5 51 24.3 0.2- 0.7- 808/YS 11.12795 22 46 22.24 + 5 50 45.2 0.3- 0.5- 808/YS 12.25235 22 44 30.69 + 5 20 33.5 ( 1.4+ 4.2+) 657/VC 12.83581 22 43 33.60 + 5 04 54.6 0.3+ 0.6- 022/PN 12.85243 22 43 31.91 + 5 04 27.2 0.6- 1.5- 022/PN 24.06424 22 27 21.48 + 0 22 23.2 ( 1.1- 5.2-) 707/ev 26.11622 22 24 50.47 - 0 25 01.0 1.4- 1.5- 657/VC 27.80451 22 22 52.55 - 1 02 59.8 0.5+ 1.5- 046/KL 27.81233 22 22 51.82 - 1 03 08.8 2.3- 0.1- 046/KL 27.82568 22 22 51.16 - 1 03 25.1 1.4+ 1.3+ 022/PN 27.84300 22 22 50.01 - 1 03 50.3 2.1+ 0.9- 022/PN 28.14618 22 22 29.32 - 1 10 32.9 0.1+ 1.0- 707/ev 28.18483 22 22 26.70 - 1 11 22.8 0.2- 0.7+ 657/VC 29.05448 22 21 29.07 - 1 30 21.5 ( 4.6+ 5.6+) 811/MM Nov. 1.15470 22 18 14.37 - 2 36 17.0 0.8+ 0.9- 657/VC 2.74094 22 16 42.14 - 3 08 38.4 1.5+ 0.5- 046/KL 2.74502 22 16 42.05 - 3 08 39.7 ( 3.9+ 3.1+) 056/SP 2.74817 22 16 41.69 - 3 08 44.3 1.0+ 2.3+ 046/KL 2.79109 22 16 39.42 - 3 09 40.7 ( 4.2+ 2.3-) 056/SP 4.07778 22 15 27.97 - 3 35 12.7 0.5- 0.3- 688/LO 5.02239 22 14 37.72 - 3 53 36.3 0.8+ 0.6+ 801/HO 5.16119 22 14 30.40 - 3 56 19.1 0.4- 1.4- 657/VC 6.16458 22 13 39.00 - 4 15 26.4 1.2- 0.1+ 675/PL 7.06627 22 12 54.45 - 4 32 20.8 1.4- 0.8+ 801/HO 7.20416 22 12 47.92 - 4 34 55.1 1.1+ 0.1- 675/PL 9.98251 22 10 40.78 - 5 25 08.0 0.4- 0.1- 801/HO 23.71889 22 03 23.94 - 8 56 20.2 ( 3.1+ 6.2+) 046/KL 23.72152 22 03 23.75 - 8 56 27.0 1.2+ 1.5+ 046/KL 24.71707 22 03 03.37 - 9 09 34.9 0.7+ 0.5+ 046/KL 24.72847 22 03 03.07 - 9 09 45.4 0.3- 1.1- 046/KL 26.18683 22 02 35.75 - 9 28 25.9 0.1+ 1.0+ 675/PL 27.08823 22 02 20.44 - 9 39 43.6 0.1- 0.5+ 675/PL Dec. 1.09826 22 01 25.12 -10 27 25.6 1.0- 1.4- 707/ev 3.96104 22 00 58.13 -10 59 01.0 ( 3.5- 0.6+) 801/HO 9.08056 22 00 34.48 -11 50 56.0 0.6- 2.2+ 707/ev 1984 June 26.55255 22 43 10.40 -42 29 17.9 0.2- 0.3- 474/JN 26.56916 22 43 09.26 -42 29 40.4 0.0 0.0 474/JN ( ) -------- Rejected Obs.
Director, Computing Section Syuichi Nakano 1984 December 2