OAA computing section circular NK 504 Periodic Comet Haneda-Campos 1978 XX
The following improved orbital elements, by S. Nakano, are from 55 observations 1978 July 30 to Nov. 29. Perturbations by all nine planets were taken into account. The mean residual is +/- 1.24 arc seconds: Epoch = 1978 Oct. 19.0 ET T = 1978 Oct. 9.49646 +/- 0.00010 (m.e.) ET Peri. = 240.43618 +/- 0.00183 Node = 131.58632 +/- 0.00183 (1950.0) Inc. = 5.95113 +/- 0.00023 q = 1.1014114 +/- 0.0001872 AU e = 0.6652485 +/- 0.0000394 a = 3.2902355 +/- 0.0004033 AU n_ = 0.16514431 +/- 0.00003036 P = 5.968 +/- 0.0010972 years (+/- 0.40 day) The predicted orbit for the 1991 return is as follows: T = 1991 Apr. 9.54074 ET Epoch = 1991 Apr. 14.0 ET Peri. = 305.44688 e = 0.6402803 Node = 67.16059 (1950.0) a = 3.4045393 AU Inc. = 4.93239 n_= 0.15689769 q = 1.2246799 AU P = 6.282 years The following residuals in seconds of arc are from the above orbital elements: Date/ UT R.A. (1950) Decl. *** O-C *** Code/Obs. h m s ! , " " " 1978 07 30.60763 20 42 07.44 -16 37 04.8 0.2- 1.5+ 414/hr 1978 07 30.62009 20 42 07.28 -16 37 15.4 0.2- 0.9+ 414/hr 1978 08 09.14986 20 41 17.94 -19 12 17.8 0.1+ 1.3- 809/ES 1978 08 10.33056 20 41 14.08 -19 35 44.2 ( 1.0+ 3.7-) 675/PL 1978 08 11.69722 20 41 14.87 -20 01 30.8 (43.6+ 84.0+) 323/PR 1978 09 02.13728 20 51 51.68 -29 45 50.8 2.4+ 1.1- 801/HO 1978 09 02.16782 20 51 53.58 -29 46 49.8 0.0 0.1- 801/HO 1978 09 02.19213 20 51 55.45 -29 47 36.0 2.5+ 1.1+ 801/HO 1978 09 02.39625 20 52 14.78 -29 53 41.3 1.9+ 1.4- 415/hr 1978 09 02.48715 20 52 21.51 -29 57 21.2 1.0+ 0.9+ 885/ur 1978 09 02.48979 20 52 21.68 -29 57 26.5 0.8+ 0.9+ 885/ur 1978 09 02.53854 20 52 24.28 -29 59 05.7 ( 8.0- 0.4+) 391/ko 1978 09 02.54236 20 52 25.3 -29 59 10 0.2- 2.8+ 878/fr Y 1978 09 02.54583 20 52 25.46 -29 59 20.7 1.3- 1.0- 878/fr 1978 09 02.55000 20 52 25.6 -29 59 27 ( 3.2- 1.0+) 878/fr Y 1978 09 02.56285 20 52 26.67 -30 00 00.0 ( 1.0+ 5.8-) 391/ko 1978 09 02.57153 20 52 28.21 -29 59 32.7 0.4- 1.8+ 323/PR 1978 09 02.58472 20 52 29.11 -29 59 59.4 0.6- 1.6+ 323/PR 1978 09 03.14600 20 53 17.18 -30 18 43.8 1.0- 1.3+ 809/ES 1978 09 03.16514 20 53 18.75 -30 20 01.1 0.6- 1.5- 801/HO 1978 09 03.25625 20 53 27.38 -30 23 00.4 2.4+ 0.7+ 688/LO 1978 09 04.16667 20 54 53.99 -30 53 39.1 2.7+ 0.3+ 688/LO 1978 09 04.52396 20 55 29.13 -31 05 09.9 1.8- 0.9- 323/PR 1978 09 04.59618 20 55 35.31 -31 07 38.1 1.0- 0.1- 323/PR 1978 09 05.15968 20 56 33.17 -31 27 23.9 ( 2.5+ 5.2+) 801/HO - continued - P/Haneda-Campos NK 504 - 2 Date/ UT R.A. (1950) Decl. *** O-C *** Code/Obs. h m s ! , " " " 1978 09 05.44556 20 57 05.40 -31 36 26.2 ( 3.7+ 8.3+) 415/hr 1978 09 05.53090 20 57 14.57 -31 39 33.1 0.7+ 0.9- 323/PR 1978 09 05.55278 20 57 16.56 -31 40 19.8 0.1+ 1.7- 323/PR 1978 09 06.20498 20 58 27.85 -32 03 13.6 ( 1.5+ 8.9+) 801/HO 1978 09 06.54670 20 59 09.61 -32 14 35.1 1.1- 1.3- 323/PR 1978 09 06.54670 20 59 09.61 -32 14 35.1 1.1- 1.3- 323/PR 1978 09 08.16787 21 02 33.40 -33 11 43.8 ( 9.6+ 2.1-) 801/HO 1978 09 08.23125 21 02 42.22 -33 13 56.4 ( 4.3+ 2.2-) 688/LO 1978 09 10.60764 21 08 28.7 -34 36 35 (35.8- 63.1+) 372/sk Y 1978 09 11.60451 21 11 18.49 -35 12 22.2 1.7- 1.5- 323/PR 1978 09 11.61944 21 11 21.19 -35 12 53.0 ( 3.2+ 0.9-) 323/PR 1978 09 12.65579 21 14 26.03 -35 49 37.3 2.6+ 2.3- 323/PR 1978 09 12.65636 21 14 25.71 -35 49 36.6 2.4- 0.5- 323/PR 1978 09 12.71250 21 14 35.40 -35 51 30.2 0.5- 0.8+ 323/PR 1978 09 12.71307 21 14 35.40 -35 51 30.2 1.7- 2.0+ 323/PR 1978 09 21.60278 21 51 32.63 -40 53 15.1 1.1- 1.2- 323/PR 1978 09 22.53333 21 56 37.87 -41 21 23.3 1.5- 0.3+ 323/PR 1978 09 24.09727 22 05 40.56 -42 06 13.0 0.5+ 1.5- 805/EL 1978 09 24.11393 22 05 46.17 -42 06 39.0 0.5+ 0.0 805/EL 1978 09 24.57083 22 08 33.73 -42 18 56.2 ( 1.8+ 5.8+) 323/PR 1978 09 25.48056 22 14 18.67 -42 42 31.0 1.2+ 1.5- 323/PR 1978 09 27.26022 22 26 04.19 -43 23 54.5 0.4- 1.1+ 805/EL 1978 09 27.26438 22 26 05.87 -43 23 59.8 0.2- 0.5+ 805/EL 1978 09 27.26855 22 26 07.52 -43 24 05.5 0.4- 0.5- 805/EL 1978 09 29.09960 22 39 17.14 -43 59 36.0 (13.4- 2.1+) 809/ES 1978 09 30.28541 22 48 11.43 -44 17 32.7 0.3- 1.4+ 805/EL 1978 09 30.28819 22 48 12.66 -44 17 36.2 0.4- 0.3- 805/EL 1978 09 30.29097 22 48 13.91 -44 17 39.0 0.4- 1.3- 805/EL 1978 10 03.60104 23 14 56.99 -44 46 24.3 0.2+ 0.6+ 323/PR 1978 10 07.14942 23 45 21.82 -44 35 03.0 0.2- 2.0+ 805/EL 1978 10 07.15220 23 45 23.18 -44 35 02.9 0.4- 0.4+ 805/EL 1978 10 07.15567 23 45 25.28 -44 35 00.6 ( 3.7+ 0.6+) 805/EL 1978 10 19.49844 01 25 46.61 -38 07 28.8 0.3- 2.0+ 323/PR 1978 10 23.62014 01 51 52.63 -34 31 14.2 0.4+ 1.5- 323/PR 1978 10 27.62935 02 13 01.88 -30 42 57.9 0.4+ 1.2+ 323/PR 1978 10 29.29768 02 20 38.48 -29 05 49.3 1.9+ 0.1- 805/EL 1978 10 29.30185 02 20 39.43 -29 05 33.7 0.8+ 0.6+ 805/EL 1978 10 29.30601 02 20 40.34 -29 05 21.2 0.8- 1.8- 805/EL 1978 10 29.65764 02 22 13.48 -28 45 35.0 ( 3.6- 4.8+) 372/sk 1978 10 30.27302 02 24 49.85 -28 08 58.4 1.5- 0.5- 805/EL 1978 10 30.27788 02 24 50.97 -28 08 39.8 1.7- 0.8+ 805/EL 1978 10 30.28344 02 24 52.47 -28 08 21.1 0.9+ 0.2- 805/EL 1978 10 31.70069 02 30 35.59 -26 46 36.3 ( 5.9- 0.8+) 372/sk 1978 11 04.29972 02 43 23.83 -23 19 02.3 1.1+ 2.2+ 805/EL 1978 11 05.73958 02 47 54.41 -21 58 12.5 0.8+ 0.3+ 323/PR 1978 11 08.68715 02 56 09.5 -19 17 40 ( 6.0- 0.2-) 372/sk Y 1978 11 22.64624 03 22 53.11 -08 13 44.9 0.3+ 1.3- 323/PR 1978 11 29.22484 03 31 09.20 -04 00 19.2 1.3- 1.7- 801/HO ( ) -------- Rejected Obs.
Director, Computing Section Syuichi Nakano 1987 August 20