January 25, 2004 02:39 UT Comet P/2003 SQ215 ( NEAT-LINEAR ) The following improved orbital elements by Kenji Muraoka, are from 43 observations 2003 Sept. 18 to 2004 Jan. 19, perturbations by 9 Planets, Moon and 5 minor planets were taken into account. The mean residual is +/- 0.65 arc seconds. Epoch = 2004 Mar. 16.0 TT JDT = 2453080.5 T = 2004 Mar. 24.22920 +/- 0.00799 (m.e.) TT Peri. = 137.30284 +/- 0.00330 Node = 257.64058 +/- 0.00246 (2000.0) Incl. = 5.54594 +/- 0.00130 q = 2.3042260 +/- 0.0014389 AU e = 0.5812584 +/- 0.0001804 a = 5.5027393 +/- 0.0024871 AU nK = 0.07635468 +/- 0.00005177 P = 12.908 +/- 0.0087513 years (+/- 3.20 days) Residuals in seconds of arc 030918 644 0.3- 0.8+ 031213 704 0.3- 0.5- 040119 809 0.5- 0.2+ 030918 644 0.0 1.0+ 031213 704 0.3- 0.4- 040119 809 0.2- 0.2+ 030918 644 0.5- 0.8+ 031213 704 0.6- 0.3+ 040119 809 0.3- 0.4+ 030924 644 0.1- 0.6+ 031222 704 1.1- 0.9- 040119 809 0.2- 0.4+ 030924 644 0.5- 0.4+ 031222 704 0.4+ 0.2- 040119 809 0.2- 0.5+ 030924 644 0.2- 0.3+ 031222 704 1.0- 0.1- 040119 809 0.4- 0.4+ 030927 699 (2.2+ 0.1-) 031222 704 0.3+ 0.7- 040119 809 0.1- 0.5+ 030927 699 1.4+ 0.8- 031222 704 1.0+ 1.6- 040119 809 0.3- 0.4+ 030927 699 0.2+ 1.5- 040109 699 0.9+ 0.6- 040119 809 0.3- 0.4+ 030927 699 0.4- 1.4- 040109 699 1.6+ 0.2- 040119 809 0.0 0.3+ 031123 703 (0.1- 4.6-) 040109 699 (2.3+ 1.5+) 040119 809 0.3- 0.5+ 031123 703 1.4+ 0.8+ 040109 699 0.3- 0.2+ 040119 809 0.3- 0.3+ 031123 703 1.2+ 0.0 040117 620 1.0+ 0.3- 040119 809 0.2- 0.4+ 031123 703 (0.8+ 2.7-) 040117 620 0.1+ 0.8- 040119 620 0.6+ 0.7- 031213 704 0.7- 0.1- 040119 809 0.8- 0.3+ 040119 620 1.2+ 0.3+ 031213 704 0.4- 0.0 040119 809 0.4- 0.3+ Comet P/2003 SQ215 (NEAT-LINEAR) Epoch 1978 Apr. 2.0 TT = JDT 2443600.5 T 1978 Apr. 16.91187 TT Muraoka q 2.2817839 (2000.0) P Q n 0.07678041 Peri. 117.37499 +0.81829211 -0.56511728 a 5.4823798 Node 277.21382 +0.48285197 +0.77498413 e 0.5837968 Incl. 6.07972 +0.31185254 +0.28291704 P 12.84 From 43 observations 2003 Sept.18-2004 Jan. 19, mean residual 0".65. Epoch 1991 Apr. 14.0 TT = JDT 2448360.5 T 1991 Apr. 7.53983 TT Muraoka q 2.3090870 (2000.0) P Q n 0.07617368 Peri. 136.51723 +0.81983845 -0.56475975 a 5.5114526 Node 258.09862 +0.49539543 +0.78227252 e 0.5810384 Incl. 5.53615 +0.28713810 +0.26286141 P 12.94 Epoch 2017 Jan. 7.0 TT = JDT 2457760.5 T 2017 Jan. 25.93841 TT Muraoka q 2.2802175 (2000.0) P Q n 0.07694120 Peri. 137.53901 +0.81816071 -0.56711026 a 5.4747388 Node 257.24761 +0.49797342 +0.78134566 e 0.5835020 Incl. 5.58154 +0.28746396 +0.26054731 P 12.81 --