OAA computing section circular NK 573 07S1-0180Periodic Comet Perrine-Mrkos 07S1-0120
The following improved orbital elements, 06F1-001 by S. Nakano, 06F1-000 are from 17 observations 1961 to 1968. Perturbations by all nine planets and five minor planets were taken into account. The mean residual is +/- 1.87 arc seconds. 06F1-001 Epoch = 06F1-000 1968 Oct. 31.0 06F1-001 TT 06F1-000 06F1-001 T = 06F1-000 1968 Nov. 1.53840 +/- 0.00072 06F1-001 (m.e.) TT 06F1-000 06F1-001 Peri. = 06F1-000 166.04555 +/- 0.00060 06F1-001 Node = 06F1-000 240.87605 +/- 0.00019 06F1-001 (2000.0) 06F1-000 06F1-001 Inc. = 06F1-000 17.75921 +/- 0.00019 06F1-001 q = 06F1-000 1.2722140 +/- 0.0000035 06F1-001 AU 06F1-000 06F1-001 e = 06F1-000 0.6426287 +/- 0.0000010 06F1-001 a = 06F1-000 3.5599224 +/- 0.0000013 06F1-001 AU 06F1-000 06F1-001 nß = 06F1-000 0.14673823 +/- 0.00000008 06F1-001 P = 06F1-000 6.717 +/- 0.0000036 06F1-001 years 06F1-000 06F1-001T = 06F1-000 1962 Feb. 12.76917 06F1-001 TT 06F1-000 06F1-001 Epoch = 06F1-000 1962 Feb. 25.0 06F1-001 TT 06F1-000 06F1-001Peri. = 06F1-000 165.94200 06F1-001 e = 06F1-000 0.6431400 06F1-001Node = 06F1-000 240.94388 06F1-001 (2000.0) a = 06F1-000 3.5557056 06F1-001 AU 06F1-000 06F1-001Inc. = 06F1-000 17.76391 06F1-001nß= 06F1-000 0.14699934 06F1-001 q = 06F1-000 1.2688891 06F1-001 AU P = 06F1-000 6.705 06F1-001 years 06F1-000 The predicted orbit for the 1995 return is as follows: 06F1-001T = 06F1-000 1995 Dec. 6.04814 06F1-001 TT 06F1-000 06F1-001 Epoch = 06F1-000 1995 Nov. 19.0 06F1-001 TT 06F1-000 06F1-001Peri. = 06F1-000 166.54182 06F1-001 e = 06F1-000 0.6385838 06F1-001Node = 06F1-000 240.62933 06F1-001 (2000.0) a = 06F1-000 3.5773977 06F1-001 AU 06F1-000 06F1-001Inc. = 06F1-000 17.83227 06F1-001nß= 06F1-000 0.14566434 06F1-001 q = 06F1-000 1.2929296 06F1-001 AU P = 06F1-000 6.766 06F1-001 years 06F1-000 The following residuals in seconds of arc are from the above orbital elements: 06F1-001Date/ UT R.A. (2000) Decl. *** O-C *** Code/Obs 06F1-000 06F1-001 h m s ¡ , " " " 06F1-000 1961 11 29.09965 20 42 47.33 -01 50 24.0 2.3+ 0.4+ 689/FS 1961 12 02.09264 20 49 55.18 -01 43 57.3 1.9+ 0.1+ 689/FS 1961 12 26.09891 21 54 40.21 +00 05 24.0 0.2+ 0.2+ 689/FS 1961 12 31.09251 22 09 42.53 +00 40 29.0 0.1- 0.8- 689/FS 1962 01 28.10966 23 42 37.34 +04 57 29.2 3.1- 0.4+ 689/FS 1962 02 03.11929 00 04 07.36 +06 00 35.5 0.6- 1.4- 689/FS 1962 03 04.12867 01 52 12.23 +10 50 25.0 1.2+ 2.1- 689/FS 1962 04 05.14075 03 50 50.04 +14 01 56.8 ( 6.8+ 0.8-) 689/FS 1968 10 24.75139 04 14 30.37 +44 29 34.5 1.0+ 2.8+ 370/sk 1968 11 20.33194 05 08 05.16 +19 53 31.3 0.1+ 0.1- 675/PL 1968 11 21.35075 05 08 59.54 +18 50 45.2 3.4- 1.2+ 675/PL 1968 11 22.37118 05 09 50.83 +17 48 29.4 1.7+ 3.1- 675/PL 1968 12 12.16922 05 18 21.37 +01 57 26.6 1.6+ 1.8- 808/YS 1968 12 13.21564 05 18 34.53 +01 23 33.0 3.3+ 3.3- 808/YS 1968 12 14.21083 05 18 46.83 +00 52 57.2 0.4+ 0.6+ 808/YS 06F1-001 07S1-0120 - continued - 06F1-000 06F1-001 07S1-0180Periodic Comet Perrine-Mrkos NK 573 - 2 06F1-000 07S1-0120 ------------------------------------------------------------------------- 06F1-001Date/ UT R.A. (2000) Decl. *** O-C *** Code/Obs 06F1-000 06F1-001 h m s ¡ , " " " 06F1-000 1968 12 15.75764 05 19 05.13 +00 07 57.2 ( 0.7- 5.4+) 370/sk 1968 12 16.52604 05 19 15.80 -00 12 58.7 ( 4.8- 3.3+) 370/sk 1968 12 17.49410 05 19 26.45 -00 38 07.3 0.2+ 1.2+ 675/PL 1968 12 19.62153 05 19 54.42 -01 28 36.1 ( 1.4+ 6.9+) 380/kj 1968 12 24.58403 05 21 05.75 -03 03 32.4 3.4- 2.3+ 370/sk 1968 12 26.63056 05 21 40.13 -03 34 03.2 1.5- 2.8+ 370/sk 1969 01 13.64236 05 29 51.56 -05 21 04.8 ( 6.9+ 3.7-) 370/sk ( ) -------- Rejected Obs.
Director, Computing Section Syuichi Nakano 1992 Apr. 24 06F