OAA computing section circular NK 532 Periodic Comet Wolf
The following improved orbital elements, by S. Nakano, are from 50 observations 1950 to 1984. Perturbations by all nine planets were taken into account. The mean residual is +/- 0.93 arc second. Epoch = 1984 May 20.0 ET T = 1984 May 31.82466 +/- 0.00148 (m.e.) ET Peri. = 162.17732 +/- 0.00037 Node = 203.51349 +/- 0.00011 (1950.0) Inc. = 27.51131 +/- 0.00011 q = 2.4153066 +/- 0.0000022 AU e = 0.4067521 +/- 0.0000005 a = 4.0713279 +/- 0.0000001 AU n = 0.11997754 +/- 0.000000004 P = 8.215 +/- 0.0000003 years T = 1950 Oct. 23.65698 ET Epoch = 1950 Oct. 6.0 ET Peri. = 161.14596 e = 0.3963705 Node = 203.87960 (1950.0) a = 4.1376285 AU Inc. = 27.31647 n = 0.11710538 q = 2.4975946 AU P = 8.416 years T = 1959 Mar. 21.83573 ET Epoch = 1959 Mar. 13.0 ET Peri. = 161.07851 e = 0.3947511 Node = 203.90488 (1950.0) a = 4.1419484 AU Inc. = 27.29773 n = 0.11692222 q = 2.5069099 AU P = 8.430 years T = 1967 Aug. 30.11644 ET Epoch = 1967 Aug. 18.0 ET Peri. = 161.25263 e = 0.3949114 Node = 203.79930 (1950.0) a = 4.1416369 AU Inc. = 27.30709 n = 0.11693541 q = 2.5060572 AU P = 8.429 years T = 1976 Jan. 25.35352 ET Epoch = 1976 Jan. 23.0 ET Peri. = 161.14370 e = 0.3956838 Node = 203.80904 (1950.0) a = 4.1381923 AU Inc. = 27.33203 n = 0.11708145 q = 2.5007765 AU P = 8.418 years The predicted orbit for the 1992 return is as follows: T = 1992 Aug. 28.12899 ET Epoch = 1992 Sept.15.0 ET Peri. = 162.29228 e = 0.4055992 Node = 203.44050 (1950.0) a = 4.0842888 AU Inc. = 27.48339 n = 0.11940689 q = 2.4277044 AU P = 8.254 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 . , " " " 1950 06 18.42464 23 07 52.89 +20 37 15.5 1.7- 1.1- 672/MW 1950 06 18.45519 23 07 54.68 +20 37 33.2 0.2- 0.9+ 672/MW 1950 06 19.39338 23 08 46.89 +20 45 28.6 0.8- 0.2+ 672/MW 1950 06 19.43841 23 08 49.29 +20 45 52.0 1.5- 0.6+ 672/MW 1950 07 20.40345 23 30 04.11 +24 06 36.5 0.5- 0.6+ 672/MW - continued - P/Wolf NK 532 - 2 Date/ UT R.A. (1950) Decl. *** O-C *** Code/Obs. h m s . , " " " 1950 07 20.44720 23 30 05.12 +24 06 46.4 0.7- 0.0 672/MW 1950 07 21.35278 23 30 27.27 +24 10 13.6 0.6- 0.5- 672/MW 1950 07 22.37049 23 30 50.85 +24 13 55.5 0.4- 0.0 672/MW 1950 08 16.31284 23 33 49.80 +24 20 38.1 0.5- 0.4- 672/MW 1950 08 16.40044 23 33 48.98 +24 20 21.0 0.1+ 1.0+ 662/LI 1950 08 16.44697 23 33 48.49 +24 20 10.7 0.1- 0.7+ 662/LI 1950 08 17.31767 23 33 41.08 +24 16 57.2 0.9+ 1.1+ 672/MW 1950 09 10.31459 23 25 39.00 +21 00 30.4 0.9- 0.5- 672/MW 1950 09 11.31078 23 25 11.91 +20 47 55.7 0.8+ 0.6+ 672/MW 1950 09 12.26917 23 24 45.65 +20 35 29.4 0.7+ 0.2- 672/MW 1950 10 10.32051 23 14 25.95 +13 01 36.2 0.8+ 0.0 672/MW 1950 11 02.18480 23 16 11.58 +06 50 53.1 0.8+ 0.4- 662/LI 1950 11 02.23064 23 16 12.49 +06 50 13.8 1.6+ 1.0- 662/LI 1950 11 12.25001 23 20 45.70 +04 42 31.7 2.6- 0.2+ 672/MW 1950 12 13.21249 23 47 21.48 +00 56 01.4 1.2- 0.1- 672/MW 1950 12 13.22465 23 47 22.21 +00 55 58.9 2.2- 0.0 672/MW 1958 06 24.32569 20 08 44.81 +18 09 52.3 1.2+ 0.2- 689/FS 1958 06 24.40672 20 08 42.75 +18 10 23.0 0.9+ 0.4- 689/FS 1958 07 10.21027 20 00 34.13 +19 21 20.0 0.5+ 0.3+ 689/FS 1958 07 10.28299 20 00 31.43 +19 21 31.1 1.5+ 0.4+ 689/FS 1958 10 08.12579 19 43 07.47 +08 14 36.7 0.3+ 0.3- 689/FS 1958 10 08.19208 19 43 10.36 +08 13 56.2 1.3+ 0.5+ 689/FS 1958 10 14.12303 19 47 52.83 +07 14 11.5 0.8+ 0.0 689/FS 1958 10 14.18951 19 47 56.12 +07 13 32.0 0.0 0.5- 689/FS 1967 09 30.20831 01 07 02.37 +14 56 17.4 1.6+ 1.0+ 693/CT 1967 10 05.53559 01 04 31.94 +13 29 10.4 ( 0.7+ 2.3-) 371/TA 1967 10 05.56319 01 04 31.27 +13 28 43.3 ( 3.4+ 1.8-) 371/TA 1967 10 07.54912 01 03 32.73 +12 55 14.8 ( 2.1- 1.4-) 371/TA 1967 10 07.55884 01 03 32.85 +12 55 09.9 ( 4.1+ 3.6+) 371/TA 1967 10 08.55903 01 03 03.21 +12 37 58.5 ( 2.0+ 6.8-) 371/TA 1967 11 04.22495 00 52 21.03 +05 15 45.3 1.9+ 1.0- 693/CT 1967 11 04.27218 00 52 20.33 +05 15 04.3 2.1+ 0.5- 693/CT 1975 05 17.30274 21 00 51.28 +13 58 17.3 1.9- 1.7- 801/HO 1975 05 17.40312 21 00 55.36 +13 59 25.7 0.7- 0.1- 691/ST 1975 05 17.44792 21 00 57.12 +13 59 55.6 0.2- 0.1+ 691/ST 1975 06 11.26970 21 12 25.97 +18 21 24.4 0.9- 0.1+ 801/HO 1975 08 08.23520 20 56 56.33 +22 14 38.8 0.5- 0.8- 691/ST 1975 08 08.27944 20 56 54.64 +22 14 27.5 0.1- 0.8- 691/ST 1975 09 04.08832 20 42 49.22 +18 26 39.4 0.7- 0.5- 801/HO 1975 09 06.17803 20 42 09.07 +18 01 12.0 1.0+ 1.7+ 801/HO 1975 09 09.34215 20 41 18.74 +17 21 09.3 0.2- 0.0 691/ST 1975 10 07.15318 20 44 26.09 +10 59 59.2 1.5+ 0.3- 691/ST 1975 11 05.99521 21 08 25.73 +05 18 56.5 1.3- 1.1+ 801/HO 1975 12 06.08403 21 48 27.32 +02 14 32.2 0.9+ 0.1- 693/CT 1975 12 06.12917 21 48 31.40 +02 14 23.3 1.2+ 0.1+ 693/CT 1983 08 01.23479 18 16 41.11 +14 04 45.2 1.0- 1.3- 675/PL 1983 08 03.21257 18 15 45.60 +13 54 31.4 0.5- 0.1+ 675/PL 1984 09 06.41460 03 44 00.06 +12 53 38.1 1.2- 0.5+ 675/PL 1984 11 03.40835 03 42 51.80 -00 17 43.7 0.5- 0.3+ 675/PL 1984 11 23.22326 03 29 20.21 -04 08 41.8 1.1- 1.6- 707/ev ( ) -------- Rejected Obs.
Director, Computing Section Syuichi Nakano 1989 May 5