OAA computing section circular NK 475 Periodic Comet Klemola 1965 VI = 1976 X
The following improved orbital elements, by S. Nakano, are from 71 observations 1965 to 1977: Perturbations by all nine planets were taken into account. The mean residual is +/- 1.51 arc seconds. Epoch = 1976 Aug. 10.0 ET T = 1976 Aug. 10.19053 +/- 0.00359 (m.e.) ET Peri. = 148.87994 +/- 0.00337 Node = 181.57150 +/- 0.00278 (1950.0) Inc. = 10.64022 +/- 0.00041 q = 1.7655783 +/- 0.0000150 AU e = 0.6417174 +/- 0.0000030 a = 4.9278924 +/- 0.0000002 AU nß = 0.09009740 +/- 0.00000000 P = 10.939 +/- 0.0000008 years T = 1965 Aug. 18.36008 ET Epoch = 1965 Aug. 28.0 ET Peri. = 148.04005 e = 0.6422190 Node = 181.99312 (1950.0) a = 4.9287083 AU Inc. = 10.60684 nß= 0.09007503 q = 1.7633984 AU P = 10.942 years The predicted orbit for the 1987 return is as follows: T = 1987 July 22.63860 ET Epoch = 1987 July 24.0 ET Peri. = 154.54252 e = 0.6404552 Node = 175.78497 (1950.0) a = 4.9305586 AU Inc. = 10.95631 nß= 0.09002433 q = 1.7727568 AU P = 10.948 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 ¡ , " " " 1965 11 01.12290 22 59 16.01 -08 26 37.5 0.3- 1.2+ 808/km 1965 11 02.02290 23 00 21.98 -08 26 52.1 1.0+ 2.6+ 808/km 1965 11 18.77097 23 22 31.88 -07 55 25.5 0.8+ 2.7- 074/BY 1965 11 18.78298 23 22 32.77 -07 55 19.6 0.7- 0.5+ 074/BY 1965 11 18.90265 23 22 42.73 -07 54 53.7 0.0 0.7- 074/BY 1965 11 23.78247 23 29 42.41 -07 34 19.0 ( 0.9+ 7.8+) 060/by 1965 11 27.04345 23 34 28.80 -07 18 12.0 0.5- 0.7+ 808/km 1965 12 13.07986 23 58 53.00 -05 36 37.0 0.8- 1.8- 822/CO 1976 08 06.06804 22 55 32.30 +06 26 00.0 ( 7.3- 2.1-) 511/ss 1976 08 07.07672 22 56 04.80 +06 21 40.0 (10.3+ 9.2-) 511/ss 1976 08 08.09998 22 56 34.40 +06 17 10.0 0.3- 2.8+ 511/ss 1976 08 08.11526 22 56 34.80 +06 17 06.0 0.3- 3.2+ 511/ss 1976 08 10.25692 22 57 34.57 +06 05 50.4 1.2+ 0.3+ 662/km 1976 08 10.29026 22 57 35.33 +06 05 39.1 0.7+ 0.2+ 662/km 1976 08 18.57984 23 00 27.85 +05 04 52.2 2.6- 0.1+ 380/kj - continued - NK 475 - 2 Date/ UT R.A. (1950) Decl. *** O-C *** Code/Obs. h m s ¡ , " " " 1976 08 18.59130 23 00 27.85 +05 04 45.4 ( 4.7- 0.6-) 380/kj 1976 08 19.64686 23 00 44.15 +04 55 08.0 1.1+ 0.1+ 380/kj 1976 08 19.67811 23 00 44.48 +04 54 50.9 1.0+ 0.4+ 380/kj 1976 08 19.95375 23 00 48.88 +04 52 14.8 2.2+ 2.1+ 993/rt 1976 08 20.66387 23 00 58.52 +04 45 28.4 1.3+ 0.1+ 372/sk 1976 08 20.69720 23 00 58.85 +04 45 09.5 1.4+ 0.6+ 372/sk 1976 08 21.70172 23 01 11.86 +04 35 12.7 0.5+ 1.0- 380/kj 1976 08 23.50224 23 01 33.47 +04 16 35.5 1.1- 0.0 885/ur 1976 08 23.51583 23 01 33.51 +04 16 28.1 2.2- 1.2+ 885/ur 1976 08 23.61155 23 01 34.45 +04 15 25.6 0.9+ 0.3- 885/ur 1976 08 24.00380 23 01 38.46 +04 11 14.1 0.6- 3.5+ 993/pl 1976 08 24.97593 23 01 48.11 +04 00 31.8 0.7- 0.1- 046/mr 1976 08 24.98496 23 01 48.24 +04 00 26.6 0.3+ 0.8+ 046/mr 1976 08 25.14944 23 01 50.04 +03 58 36.5 0.1+ 0.3- 801/mc 1976 08 25.92778 23 01 57.04 +03 49 47.5 0.4- 1.8- 046/mr 1976 08 25.93860 23 01 57.32 +03 49 38.8 2.9+ 3.1- 046/mr 1976 08 26.17990 23 01 59.19 +03 46 57.3 0.8- 0.1- 801/sa 1976 08 26.91277 23 02 05.45 +03 38 27.5 0.1+ 0.2- 046/mr 1976 08 26.92348 23 02 05.56 +03 38 20.1 0.9+ 0.1- 046/mr 1976 08 28.00118 23 02 13.74 +03 25 34.6 0.0 1.0- 993/dk 1976 08 28.64389 23 02 18.13 +03 17 53.0 1.5- 0.1- 390/kr 1976 08 28.71508 23 02 18.09 +03 17 02.6 ( 5.7- 1.4+) 390/kr 1976 08 28.88407 23 02 20.24 +03 14 54.4 0.4+ 1.5- 046/vv 1976 08 28.89529 23 02 20.28 +03 14 45.0 0.3+ 2.7- 046/vv 1976 08 30.20507 23 02 28.57 +02 58 51.8 0.7+ 0.2+ 808/YS 1976 08 30.22100 23 02 28.59 +02 58 40.3 0.5+ 0.7+ 808/YS 1976 08 31.61248 23 02 37.06 +02 40 50.1 ( 4.1+ 0.5-) 372/sk 1976 09 13.84813 23 03 36.50 -00 19 47.6 1.6- 2.3- 046/vv 1976 09 14.50739 23 03 40.25 -00 28 54.8 1.5+ 0.0 885/ur 1976 09 14.51028 23 03 40.27 -00 28 58.2 1.7+ 1.0- 885/ur 1976 09 15.49998 23 03 45.75 -00 42 43.9 0.1- 1.0- 885/ur 1976 09 15.50733 23 03 45.85 -00 42 49.2 1.1+ 0.2- 885/ur 1976 09 15.65918 23 03 46.32 -00 44 44.6 0.3- 1.2- 323/jp 1976 09 16.54963 23 03 51.91 -00 57 13.6 0.9- 1.1+ 882/sz 1976 09 17.16457 23 03 55.81 -01 05 30.9 0.1+ 0.2+ 808/YS 1976 09 17.18397 23 03 55.92 -01 05 46.4 0.9+ 0.7+ 808/YS 1976 09 17.49998 23 03 58.31 -01 10 23.1 1.0- 3.7- 885/ur 1976 09 17.50727 23 03 58.39 -01 10 27.2 0.2- 1.8- 885/ur 1976 09 17.55554 23 03 58.52 -01 11 06.0 0.8- 0.9- 882/sz 1976 09 19.23540 23 04 10.93 -01 33 57.0 0.4- 0.9+ 691/rm 1976 09 19.24442 23 04 10.97 -01 34 04.3 0.3- 0.9+ 691/rm 1976 09 20.96819 23 04 25.34 -01 57 16.2 0.6+ 1.8- 046/mr 1976 09 22.99320 23 04 45.43 -02 23 45.6 2.5+ 3.1+ 993/sy 1976 09 23.18324 23 04 47.19 -02 26 14.7 1.5- 0.4+ 801/sa 1976 09 23.91535 23 04 55.53 -02 35 40.7 0.3+ 0.9- 046/vv 1976 09 25.85573 23 05 19.19 -03 00 00.2 3.1- 2.3+ 094/cr 1976 09 27.27151 23 05 38.77 -03 17 17.7 ( 4.8- 0.5-) 675/hl 1976 09 27.28887 23 05 39.06 -03 17 29.1 3.3- 0.7+ 675/hl 1976 09 27.84197 23 05 47.75 -03 24 08.9 0.4- 0.3- 046/mr 1976 09 27.85626 23 05 47.77 -03 24 19.0 2.7- 0.2- 046/mr - continued - NK 475 - 3 Date/ UT R.A. (1950) Decl. *** O-C *** Code/Obs. h m s ¡ , " " " 1976 09 28.73785 23 06 01.88 -03 34 43.3 1.0- 1.9- 094/cr 1976 09 28.78256 23 06 02.25 -03 35 07.9 ( 4.5- 4.8+) 094/cr 1976 09 29.81733 23 06 19.63 -03 47 09.0 2.1- 0.8- 094/cr 1976 09 29.83990 23 06 20.00 -03 47 23.3 1.3- 0.3+ 094/cr 1976 10 19.64529 23 15 52.06 -06 33 01.2 0.3- 1.0+ 323/jp 1976 10 25.80544 23 20 25.84 -06 58 53.1 0.6+ 1.2- 046/mr 1976 10 25.82003 23 20 26.37 -06 58 49.0 ( 1.5- 5.7+) 046/mr 1976 10 26.78114 23 21 13.35 -07 01 49.3 2.1+ 0.6- 046/mr 1976 10 26.79537 23 21 13.86 -07 01 43.3 ( 0.2- 7.9+) 046/mr 1976 10 27.03618 23 21 25.85 -07 02 28.7 1.6+ 2.8+ 801/sw 1976 10 27.84567 23 22 06.17 -07 04 42.1 3.1+ 0.7- 046/mr 1976 10 27.86014 23 22 06.86 -07 04 39.8 3.0+ 3.8+ 046/mr 1976 10 27.89801 23 22 08.28 -07 04 44.9 ( 4.6- 4.6+) 993/sf 1976 11 24.4345 23 51 10.54 -06 33 19.2 0.8- 0.1- 413/SS 1976 11 24.4484 23 51 11.39 -06 33 17.4 3.0- 1.9- 413/SS 1976 11 27.07101 23 54 27.99 -06 21 40.1 1.0- 0.4+ 691/rm 1976 12 24.08194 00 31 20.40 -03 26 48.0 ( 2.2- 4.5-) 693/rm 1976 12 24.12708 00 31 24.60 -03 26 30.0 ( 3.0+ 7.7-) 693/rm 1977 01 21.02714 01 13 14.33 +00 31 01.6 3.2+ 3.4+ 801/sa ( ) -------- Rejected Obs.
Director, Computing Section Syuichi Nakano 1985 July 7