OAA computing section circular NK 571 07S1-0180Periodic Comet Clark 07S1-0120
The following improved orbital elements, 06F1-001 by S. Nakano, 06F1-000 are from 77 observations 1973 - 1989, including full planetary and five minor planets perturbations and non-gravitational effect of style II. The mean residual is +/- 0.79 arc second. 06F1-001 Epoch = 06F1-000 1989 Nov. 10.0 06F1-001 TT 06F1-000 06F1-001 T = 06F1-000 1989 Nov. 28.40628 +/- 0.00191 06F1-001 (m.e.) TT 06F1-000 06F1-001 Peri. = 06F1-000 208.96926 +/- 0.00045 06F1-001 Node = 06F1-000 59.71977 +/- 0.00021 06F1-001 (2000.0) 06F1-000 06F1-001 Inc. = 06F1-000 9.49954 +/- 0.00005 06F1-001 q = 06F1-000 1.5558327 +/- 0.0000011 06F1-001 AU 06F1-000 06F1-001 e = 06F1-000 0.5013233 +/- 0.0000008 06F1-001 a = 06F1-000 3.1199227 +/- 0.0000006 06F1-001 AU 06F1-000 06F1-001 nß = 06F1-000 0.17884975 +/- 0.00000005 06F1-001 P = 06F1-000 5.511 +/- 0.0000015 06F1-001 years 06F1-000 06F1-001 A1 = 06F1-000 +0.989 +/- 0.040 06F1-001 A2 = 06F1-000 +0.00169 +/- 0.00115 06F1-001 A3 = 06F1-000 +0.337 +/- 0.016 06F1-001T = 06F1-000 1973 May 24.88358 06F1-001 TT 06F1-000 06F1-001 Epoch = 06F1-000 1973 June 7.0 06F1-001 TT 06F1-000 06F1-001Peri. = 06F1-000 209.16652 06F1-001 e = 06F1-000 0.5003267 06F1-001Node = 06F1-000 59.79420 06F1-001 (2000.0) a = 06F1-000 3.1228080 06F1-001 AU 06F1-000 06F1-001Inc. = 06F1-000 9.50379 06F1-001nß= 06F1-000 0.17860193 06F1-001 q = 06F1-000 1.5603837 06F1-001 AU P = 06F1-000 5.518 06F1-001 years 06F1-000 06F1-001T = 06F1-000 1978 Nov. 26.28476 06F1-001 TT 06F1-000 06F1-001 Epoch = 06F1-000 1978 Nov. 28.0 06F1-001 TT 06F1-000 06F1-001Peri. = 06F1-000 209.08047 06F1-001 e = 06F1-000 0.5009201 06F1-001Node = 06F1-000 59.74206 06F1-001 (2000.0) a = 06F1-000 3.1198989 06F1-001 AU 06F1-000 06F1-001Inc. = 06F1-000 9.50182 06F1-001nß= 06F1-000 0.17885179 06F1-001 q = 06F1-000 1.5570787 06F1-001 AU P = 06F1-000 5.511 06F1-001 years 06F1-000 06F1-001T = 06F1-000 1984 May 29.04680 06F1-001 TT 06F1-000 06F1-001 Epoch = 06F1-000 1984 May 20.0 06F1-001 TT 06F1-000 06F1-001Peri. = 06F1-000 209.04416 06F1-001 e = 06F1-000 0.5023459 06F1-001Node = 06F1-000 59.73775 06F1-001 (2000.0) a = 06F1-000 3.1170189 06F1-001 AU 06F1-000 06F1-001Inc. = 06F1-000 9.50733 06F1-001nß= 06F1-000 0.17909972 06F1-001 q = 06F1-000 1.5511972 06F1-001 AU P = 06F1-000 5.503 06F1-001 years 06F1-000 The predicted orbit for the 1995 return is as follows: 06F1-001T = 06F1-000 1995 May 31.24486 06F1-001 TT 06F1-000 06F1-001 Epoch = 06F1-000 1995 June 12.0 06F1-001 TT 06F1-000 06F1-001Peri. = 06F1-000 208.84473 06F1-001 e = 06F1-000 0.5020687 06F1-001Node = 06F1-000 59.72130 06F1-001 (2000.0) a = 06F1-000 3.1179050 06F1-001 AU 06F1-000 06F1-001Inc. = 06F1-000 9.50346 06F1-001nß= 06F1-000 0.17902338 06F1-001 q = 06F1-000 1.5525026 06F1-001 AU P = 06F1-000 5.505 06F1-001 years 06F1-000 The following residuals in seconds of arc are from the above orbital elements: 06F1-001 07S1-0120 - continued - 06F1-000 06F1-001 07S1-0180Periodic Comet Clark NK 571 - 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 1973 06 01.69722 20 42 31.11 -29 53 17.9 0.9- 0.5+ 474/JN 1973 06 10.66666 20 56 36.87 -31 22 49.7 ( 2.5+ 2.0-) 474/JN 1973 06 11.64644 20 57 57.44 -31 33 03.7 ( 0.1+ 2.4+) 485/CA 1973 06 12.48097 20 59 04.88 -31 41 53.3 0.2+ 0.5+ 485/CA 1973 06 17.58206 21 05 13.55 -32 37 15.8 1.4+ 0.7+ 485/CA 1973 06 20.60069 21 08 18.26 -33 10 50.8 1.6+ 0.6+ 485/CA 1973 06 28.28713 21 14 09.17 -34 37 28.6 0.3+ 0.4- 821/AL 1973 06 28.28852 21 14 09.21 -34 37 29.4 0.3+ 0.2- 821/AL 1973 06 28.28991 21 14 09.28 -34 37 30.3 0.7+ 0.2- 821/AL 1973 06 28.29130 21 14 09.26 -34 37 31.6 0.1- 0.6- 821/AL 1973 06 28.29269 21 14 09.36 -34 37 33.5 0.7+ 1.5- 821/AL 1973 06 28.29546 21 14 09.43 -34 37 34.3 0.6+ 0.5- 821/AL 1973 06 28.29685 21 14 09.42 -34 37 35.3 0.0 0.5- 821/AL 1973 06 28.29824 21 14 09.47 -34 37 36.0 0.1+ 0.3- 821/AL 1973 06 28.29963 21 14 09.55 -34 37 37.5 0.6+ 0.9- 821/AL 1973 06 28.30102 21 14 09.57 -34 37 38.2 0.3+ 0.6- 821/AL 1973 06 28.58817 21 14 19.53 -34 40 46.8 0.1- 0.8+ 474/JN 1973 06 28.64451 21 14 21.08 -34 41 26.5 0.7- 0.7- 474/JN 1973 06 28.66258 21 14 21.55 -34 41 38.6 1.2- 0.7- 474/JN 1973 06 29.51684 21 14 49.56 -34 51 10.9 0.5+ 1.3- 474/JN 1973 06 30.49219 21 15 18.05 -35 02 00.7 0.4+ 0.5- 474/JN 1973 06 30.58704 21 15 20.26 -35 03 05.4 0.1+ 0.2- 474/JN 1973 07 01.51219 21 15 44.55 -35 13 18.2 1.3- 0.9- 474/JN 1973 07 01.61313 21 15 46.71 -35 14 26.0 0.2+ 0.6- 474/JN 1973 07 01.87639 21 15 54.04 -35 17 18.0 ( 4.0+ 2.3+) 076/HB 1973 07 01.89653 21 15 54.28 -35 17 30.1 ( 2.1+ 4.1+) 076/HB 1973 07 02.55455 21 16 08.60 -35 24 44.0 0.3- 0.3- 474/JN 1973 07 02.60189 21 16 09.38 -35 25 15.5 0.5- 0.2- 474/JN 1973 07 03.41111 21 16 25.05 -35 34 02.6 0.8- 1.3+ 808/YS 1973 07 03.51736 21 16 28.27 -35 35 10.8 0.4+ 0.2+ 485/CA 1973 07 03.53056 21 16 28.50 -35 35 19.5 0.9+ 0.4+ 485/CA 1973 07 03.56210 21 16 28.88 -35 35 40.6 0.4- 0.6- 474/JN 1973 07 04.56724 21 16 46.30 -35 46 27.3 0.4+ 0.1+ 474/JN 1973 07 04.92708 21 16 52.19 -35 50 19.8 1.6+ 0.8+ 076/HB 1973 07 04.94861 21 16 52.32 -35 50 34.5 0.7+ 0.3+ 076/HB 1973 07 09.43264 21 17 30.29 -36 36 44.8 0.9- 1.6- 688/LO 1973 07 10.42153 21 17 31.70 -36 46 21.2 1.0- 0.5- 688/LO 1973 07 27.6867 21 12 25.75 -38 48 40.5 ( 3.6- 0.4-) 413/SS 1973 07 28.6590 21 11 55.76 -38 52 21.4 ( 3.3- 1.4+) 413/SS 1973 08 01.90139 21 09 39.08 -39 03 52.7 ( 0.2+ 2.3+) 076/HB 1973 08 01.94931 21 09 36.99 -39 03 58.6 ( 2.4- 1.8+) 076/HB 1973 08 07.28611 21 06 42.26 -39 07 24.1 0.9- 1.8+ 808/YS 1973 08 21.80972 21 00 45.39 -38 19 38.5 0.3+ 1.8 06.42710 00 54 09.83 +00 33 39.3 1.5- 0.9- 689/FS 1965 08 25.29046 01 14 08.17 +03 12 14.4 0.1+ 1.3+ 689/FS 1965 08 25.31407 01 14 09.13 +03 12 24.8 0.2- 1.5+ 689/FS 1965 09 02.45060 01 18 52.78 +04 05 42.9 1.6+ 1.4+ 689/FS 1965 09 02.47282 01 18 53.25 +04 05 50.8 1.5+ 1.4+ 689/FS 1965 09 25.34490 01 19 03.76 +05 47 48.0 0.8+ 1.8+ 689/FS 1965 09 25.36711 01 19 03.19 +05 47 51.9 0.9+ 1.6+ 689/FS 1965 10 15.1414 2.778 2.631 21.9 / 70 16.4 109 .11 24 18 23 30.204 -01 30.94 23 29.874 -01 33.07 2.778 2.631 21.9 / 70 16.4 109 .11 24 19 23 30.261 -01 30.63 23 29.931 -01 32.76 2.777 2.630 21.9 / 70 16.4 110 .11 P/Ashbrook-Jackson 1992j 11.5 10 1.0 28G Date/ TT R.A.(2000) Decl. R.A.(App.) Decl. Delta r Daily motion Mag. Moon Age h h m ¡ , h m ¡ , , / PA ¡ m1 ¡ 1993 May 24 15 00 03.151 -05 23.69 00 02.819 -05 25.83 2.583 2.344 26.1 / 62 13.4 101 .10 24 16 00 03.215 -05 23.18 00 02.883 -05 25.31 2.582 2.344 26.1 / 62 13.4 102 .10 24 17 00 03.279 -05 22.66 00 02.947 -05 24.80 2.582 2.344 26.1 / 62 13.4 102 .11 24 18 00 03.344 -05 22.15 00 03.011 -05 24.28 2.582 2.344 26.1 / 62 13.4 103 .11 24 19 00 03.408 -05 21.63 00 03.076 -05 23.77 2.581 2.344 26.1 / 62 13.4 104 .11 P/Forbes 1993f 15.5 5 10.5 10G Date/ TT R.A.(2000) Decl. R.A.(App.) Decl. Delta r Daily motion Mag. Moon Age h h m ¡ , h m ¡ , , / PA ¡ m1 ¡ 1993 May 24 15 00 14.628 +01 13.37 00 14.295 +01 11.20 1.887 1.630 35.7 / 61 14.0 96 .10 24 16 00 14.715 +01 14.09 00 14.381 +01 11.93 1.887 1.630 35.7 / 61 14.0 97 .10 24 17 00 14.801 +01 14.82 00 14.468 +01 12.65 1.886 1.630 35.7 / 61 14.0 97 .11 24 18 00 14.888 +01 15.54 00 14.555 +01 13.37 1.886 1.631 35.7 / 61 14.0 98 .11 24 19 00 14.975 +01 16.26 00 14.642 +01 14.09 1.886 1.631 35.7 / 61 14.0 99 .11 P/Lovas 2 17.0 10 8.5 25 Date/ TT R.A.(2000) Decl. R.A.(App.) Decl. Delta r Daily motion Mag. Moon Age h h m ¡ , h m ¡ , , / PA ¡ m1 ¡ 1993 May 24 16 01 05.975 +08 07.32 01 05.632 +08 05.19 1.989 1.465 48.5 / 67 14.1 83 .10 24 17 01 06.100 +08 08.11 01 05.758 +08 05.98 1.989 1.465 48.5 / 67 14.1 83 .11 24 18 01 06.226 +08 08.89 01 05.883 +08 06.77 1.989 1.465 48.4 / 67 14.1 84 .11 24 19 01 06.351 +08 09.68 01 06.008 +08 07.56 1.988 1.465 48.4 / 67 14.1 84 .11 P/Holmes 14.0 10 10.0 15 Date/ TT R.A.(2000) Decl. R.A.(App.) Decl. Delta r Daily motion Mag. Moon Age h h m ¡ , h m ¡ , , / PA ¡ m1 ¡ 1993 May 24 16 01 11.957 +17 32.51 01 11.606 +17 30.36 2.860 2.201 31.2 / 57 17.4 78 .10 24 17 01 12.033 +17 33.22 01 11.682 +17 31.07 2.860 2.201 31.2 / 57 17.4 79 .11 24 18 01 12.109 +17 33.93 01 11.758 +17 31.78 2.860 2.201 8 29 00 14.89 +02 24.7 2.255 2.532 16.9/ 73 93.7 15.8 +39.6 301.5 30 00 15.97 +02 29.7 2.240 2.530 16.7/ 73 94.4 15.8 +40.2 302.3 July 1 00 17.04 +02 34.7 2.226 2.527 16.5/ 73 95.1 15.8 +40.9 303.0 P/Lovas 2 17.0 10 8.5 25 18h TT R.A.(2000) Decl. Delta r Mot./PA Elong. Mag. h A h m ¡ , , ¡ ¡ m1 ¡ ¡ June 12 02 03.39 +13 44.7 1.929 1.466 46.6/ 70 48.4 14.1 +11.4 261.1 13 02 06.40 +14 00.8 1.926 1.467 46.5/ 70 48.6 14.1 +11.7 261.0 14 02 09.40 +14 16.8 1.924 1.468 46.4/ 70 48.7 14.1 +12.0 260.9 15 02 12.40 +14 32.6 1.921 1.469 46.2/ 70 48.9 14.1 +12.3 260.8 16 02 15.40 +14 48.2 1.919 1.470 46.1/ 70 49.1 14.1 +12.6 260.7 17 02 18.40 +15 03.6 1.916 1.472 45.9/ 71 49.3 14.1 +13.0 260.6 18 02 21.39 +15 18.8 1.914 1.473 45.8/ 71 49.5 14.1 +13.3 260.5 19 02 24.38 +15 33.8 1.912 1.474 45.6/ 71 49.7 14.1 +13.7 260.5 20 02 27.37 +15 48.7 1.909 1.476 45.5/ 71 49.9 14.1 +14.0 260.4 21 02 30.36 +16 03.3 1.907 1.477 45.3/ 71 50.1 14.1 +14.4 260.3 22 02 33.34 +16 17.7 1.905 1.479 45.1/ 72 50.3 14.1 +14.8 260.3 23 02 36.32 +16 32.0 1.903 1.480 45.0/ 72 50.5 14.2 +15.1 260.3 24 02 39.29 +16 46.0 1.901 1.482 44.8/ 72 50.7 14.2 +15.5 260.2 25 02 42.26 +16 59.8 1.898 1.484 44.6/ 72 50.9 14.2 +15.9 260.2 26 02 45.22 +17 13.4 1.896 1.486 44.4/ 72 51.1 14.2 +16.3 260.2 27 02 48.18 +17 26.8 1.894 1.488 44.3/ 73 51.3 14.2 +16.7 260.2 28 02 51.14 +17 40.0 1.892 1.490 44.1/ 73 51.5 14.2 +17.1 260.2 29 02 54.09 +17 53.0 1.890 1.492 43.9/ 73 51.7 14.2 +17.5 260.2 30 02 57.03 +18 05.7 1.888 1.494 453 11 36 28.25 +16 10 04.9 0.2+ 0.8- 675/PL 1989 01 17.45216 11 36 28.21 +16 10 06.7 0.2- 0.8- 675/PL 1989 01 18.49492 11 36 26.96 +16 14 42.0 0.5+ 0.7- 675/PL 1989 01 18.50016 11 36 26.93 +16 14 43.3 0.3+ 0.9- 675/PL 1989 01 18.50530 11 36 26.90 +16 14 44.5 0.1+ 1.0- 675/PL ( ) -------- Rejected Obs.
Director, Computing Section Syuichi Nakano 1993 Apr. 24 06F