July 2, 2006 11:50:13 UT Comet 177P/Barnard 2 Epoch 1777 Jan. 25.0 TT = JDT 2370120.5 T 1777 Feb. 8.88970 TT Muraoka q 1.0948185 (2000.0) P Q n 0.00868784 Peri. 60.17512 +0.76570713 +0.38022036 a 23.4348131 Node 272.92134 -0.60031043 +0.71203415 e 0.9532824 Incl. 31.29521 +0.23091119 +0.59028794 P 113.45 From 117 observations 1889-2006, mean residual 1".03. Comet 177P/Barnard 2 Epoch 2127 Apr. 21.0 TT = JDT 2498040.5 T 2127 Apr. 13.77480 TT Muraoka q 1.1207063 (2000.0) P Q n 0.00782312 Peri. 60.48237 +0.76030654 +0.39392774 a 25.1313669 Node 271.82225 -0.60894082 +0.70902696 e 0.9554061 Incl. 31.11413 +0.22610846 +0.58489461 P 125.99 From 117 observations 1889-2006, mean residual 1".03. OrbitsPD Comet P/1889 M1 = 2006 M3 ( Barnard 2 ) The following improved orbital elements by Kenji Muraoka, are from 118 observations 1889 June 24 to 2006 June 30, perturbations by 8 Plantes, Moon and 3 minor planets were taken into account. The mean residual is +/- 1.02 arc seconds. Epoch = 2006 Sept. 22.0 TT JDT = 2454000.5 T = 2006 Aug. 28.68921 +/- 0.00039 (m.e.) TT Peri. = 60.46358 +/- 0.00032 Node = 272.06587 +/- 0.00002 (2000.0) Incl. = 31.21735 +/- 0.00008 q = 1.1071894 +/- 0.0000033 AU e = 0.9543989 +/- 0.0000001 a = 24.2798961 +/- 0.0000042 AU nK = 0.00823823 +/- 0.00000000 P = 119.638 +/- 0.0000307 years T = 1889 June 21.23201 TT Epoch = 1889 June 7.0 TT Peri. = 60.14429 e = 0.9539861 Node = 272.54492 (2000.0) a = 23.9703781 AU Incl. = 31.22038 nK = 0.008398307 q = 1.1029700 AU P = 117.358 years Residuals in seconds of arc 890624 662 2.4- 2.6+ 060624 734 0.4- 0.2+ 060627 423 0.1+ 0.0 890625 662 (7.9- 2.3+) 060624 734 0.1- 0.1+ 060627 423 0.4- 0.6- 890626 662 0.7+ 2.1+ 060624 734 0.3- 0.2+ 060627 D88 0.3- 0.8- 890627 662 0.2+ 0.2- 060624 734 0.1- 0.2+ 060627 D88 0.2+ 0.7+ 890628 020 (6.4- 2.7+) 060624 704 0.1- 0.1+ 060627 423 0.5- 0.5- 890628 045 1.1- 3.4- 060624 704 0.2- 0.2+ 060627 D88 0.2+ 0.9+ 890630 662 1.5+ 1.5- 060624 704 0.1- 0.8- 060627 349 0.1+ 0.1+ 890701 662 0.8+ 0.5+ 060624 H06 1.5- 1.3+ 060627 349 0.0 0.3+ 890702 662 2.6- 3.0- 060624 H06 0.5+ 1.3+ 060627 349 0.5+ 0.1- 890703 662 (4.8+ 5.5-) 060624 H06 0.3- 0.5+ 060627 J95 0.2+ 0.3+ 890704 662 (2.3+ 6.7-) 060624 428 0.8- 1.5- 060627 J95 0.3+ 0.8+ 890705 662 0.4- 2.0- 060624 428 0.8- 0.8- 060627 J95 0.2+ 1.0+ 890705 045 4.7+ 1.4+ 060624 428 0.3- 0.6- 060628 850 1.6+ 0.5+ 890706 662 1.5- 4.1- 060625 H06 0.0 0.3+ 060628 850 0.5+ 0.4- 890708 662 2.5+ 4.0+ 060625 H06 0.0 0.0 060628 850 0.1+ 0.7- 890710 662 2.5- 1.8+ 060625 H06 (1.6+ 2.7+) 060628 850 1.3- 0.7- 890711 662 3.6+ 1.3- 060625 H06 0.4- 0.3- 060628 J97 0.7+ 0.5+ 890801 662 (0.7- 11.8+) 060625 H06 0.6- 0.2- 060628 J97 2.0+ 1.5- 890807 662 0.9- 5.4+ 060625 H06 0.3+ 0.2- 060629 850 0.8+ 0.5+ 060623 704 0.4+ 0.2+ 060625 H06 0.2- 0.9- 060629 850 1.1+ 0.1- 060623 704 0.1- 0.8- 060625 423 0.8+ 0.0 060629 850 0.5+ 0.2+ 060623 704 0.3+ 0.1- 060625 423 0.4+ 0.2- 060629 850 0.4+ 0.0 060623 J87 0.0 0.4- 060625 213 1.0- 0.2- 060629 850 0.1+ 0.1+ 060623 J87 0.0 0.2+ 060625 213 0.9- 0.2- 060629 850 0.1- 0.2+ 060623 J87 0.1+ 0.2+ 060625 213 1.2- 0.0 060629 850 1.0- 0.2+ 060623 118 0.4- 0.6- 060625 A77 0.4- 0.1+ 060629 850 0.5+ 1.3- 060623 118 0.1+ 0.5+ 060625 A77 0.9- 0.5+ 060629 F84 0.1- 0.2- 060623 J87 0.1+ 0.5+ 060625 A77 0.1- 0.7+ 060629 F84 0.7- 0.5- 060623 118 0.4- 0.3+ 060625 A77 1.1- 1.2+ 060629 F84 0.1- 0.6- 060623 118 0.3- 0.6- 060625 A77 0.7+ 0.5+ 060629 H06 0.7+ 0.9- 060623 118 0.1+ 0.3- 060625 A77 0.8+ 0.2- 060629 H06 1.2+ 0.0 060623 176 0.2+ 0.5+ 060625 A77 0.5- 0.4+ 060629 379 0.7+ 0.8- 060623 176 0.1- 0.0 060625 A77 1.3+ 1.3+ 060629 379 0.1+ 0.9- 060623 176 0.6- 0.3+ 060625 A77 (0.2- 2.3+) 060629 379 0.9+ 0.5- 060623 204 0.3- 0.2+ 060626 104 0.4- 0.1+ 060629 379 1.0+ 0.9- 060623 204 0.3+ 0.2+ 060626 104 0.2+ 0.5+ 060629 379 0.4+ 0.1- 060623 204 0.5- 0.2- 060626 213 0.6- 0.4+ 060629 945 0.3+ 0.6- 060623 204 0.1+ 0.2+ 060626 213 0.5- 0.6+ 060630 945 0.2+ 1.1+ 060624 I77 0.3- 0.3- 060626 213 0.2- 0.8+ 060630 673 0.3+ 0.1- 060624 I77 0.6- 0.6- 060626 104 (2.6+ 0.6+) 060630 673 0.4+ 0.0 060624 I77 0.2- 0.1- 060626 104 1.2- 0.6+ 060630 673 0.1- 0.1- 060624 734 0.2- 0.3+ 060627 423 0.2+ 0.1- 060630 673 0.2+ 0.2+ Orbits 2. Comet P/1889 M1 = 2006 M3 ( Barnard 2 ) The following improved orbital elements by Kenji Muraoka, are from 117 observations 1889 June 24 to 2006 June 30, perturbations by 8 Plantes, Moon and 3 minor planets were taken into account. The mean residual is +/- 1.03 arc seconds. Epoch = 2006 Sept. 22.0 TT JDT = 2454000.5 T = 2006 Aug. 28.68880 +/- 0.00120 (m.e.) TT Peri. = 60.46326 +/- 0.00080 Node = 272.06588 +/- 0.00008 (2000.0) Incl. = 31.21750 +/- 0.00025 q = 1.1071901 +/- 0.0000079 AU e = 0.9543989 +/- 0.0000003 a = 24.2799006 +/- 0.0000101 AU nK = 0.00823823 +/- 0.00000001 P = 119.638 +/- 0.0000745 years T = 1889 June 21.23181 TT Epoch = 1889 June 7.0 TT Peri. = 60.14398 e = 0.9539861 Node = 272.54492 (2000.0) a = 23.9703797 AU Incl. = 31.22054 nK = 0.008398306 q = 1.1029708 AU P = 117.358 years Residuals in seconds of arc 890624 662 2.0- 2.1+ 060624 734 0.3- 0.3+ 060627 423 0.1+ 0.1- 890625 662 (7.6- 1.8+) 060624 734 0.1- 0.2+ 060627 423 0.4- 0.6- 890626 662 1.0+ 1.7+ 060624 734 0.3- 0.3+ 060627 D88 0.3- 0.8- 890627 662 0.6+ 0.7- 060624 734 0.0 0.3+ 060627 D88 0.2+ 0.7+ 890628 020 (6.1- 2.3+) 060624 704 0.1- 0.2+ 060627 423 0.5- 0.6- 890628 045 0.7- 3.8- 060624 704 0.2- 0.4+ 060627 D88 0.2+ 0.8+ 890630 662 1.9+ 2.0- 060624 704 0.1- 0.7- 060627 349 0.1+ 0.0 890701 662 1.2+ 0.0 060624 H06 1.5- 1.4+ 060627 349 0.0 0.2+ 890702 662 2.2- 3.5- 060624 H06 0.5+ 1.4+ 060627 349 0.6+ 0.2- 890703 662 (5.2+ 6.0-) 060624 H06 0.2- 0.6+ 060627 J95 0.2+ 0.2+ 890704 662 (2.6+ 7.2-) 060624 428 0.8- 1.4- 060627 J95 0.3+ 0.7+ 890705 662 0.1- 2.5- 060624 428 0.8- 0.7- 060627 J95 0.2+ 0.9+ 890705 045 5.1+ 0.9+ 060624 428 0.3- 0.5- 060628 850 1.6+ 0.4+ 890706 662 1.1- 4.6- 060625 H06 0.1+ 0.4+ 060628 850 0.5+ 0.5- 890708 662 2.9+ 3.5+ 060625 H06 0.0 0.1+ 060628 850 0.1+ 0.8- 890710 662 2.1- 1.2+ 060625 H06 (1.6+ 2.8+) 060628 850 1.3- 0.8- 890711 662 3.9+ 1.9- 060625 H06 0.4- 0.3- 060628 J97 0.7+ 0.3+ 890801 662 (0.3- 11.1+) 060625 H06 0.6- 0.1- 060628 J97 (2.0+ 1.6-) 890807 662 0.5- 4.7+ 060625 H06 0.3+ 0.1- 060629 850 0.8+ 0.3+ 060623 704 0.4+ 0.4+ 060625 H06 0.2- 0.9- 060629 850 1.1+ 0.2- 060623 704 0.1- 0.6- 060625 423 0.8+ 0.1+ 060629 850 0.5+ 0.1+ 060623 704 0.3+ 0.1+ 060625 423 0.5+ 0.1- 060629 850 0.4+ 0.1- 060623 J87 0.0 0.2- 060625 213 1.0- 0.1- 060629 850 0.1+ 0.0 060623 J87 0.0 0.4+ 060625 213 0.9- 0.1- 060629 850 0.1- 0.0 060623 J87 0.1+ 0.4+ 060625 213 1.2- 0.1+ 060629 850 1.0- 0.0 060623 118 0.4- 0.4- 060625 A77 0.4- 0.1+ 060629 850 0.5+ 1.5- 060623 118 0.1+ 0.7+ 060625 A77 0.9- 0.5+ 060629 F84 0.1- 0.4- 060623 J87 0.1+ 0.7+ 060625 A77 0.1- 0.7+ 060629 F84 0.6- 0.6- 060623 118 0.3- 0.5+ 060625 A77 1.1- 1.2+ 060629 F84 0.1- 0.8- 060623 118 0.2- 0.5- 060625 A77 0.7+ 0.5+ 060629 H06 0.7+ 1.1- 060623 118 0.1+ 0.2- 060625 A77 0.8+ 0.2- 060629 H06 1.3+ 0.1- 060623 176 0.2+ 0.6+ 060625 A77 0.5- 0.4+ 060629 379 0.7+ 1.0- 060623 176 0.0 0.1+ 060625 A77 1.3+ 1.4+ 060629 379 0.1+ 1.1- 060623 176 0.6- 0.4+ 060625 A77 (0.2- 2.3+) 060629 379 0.9+ 0.7- 060623 204 0.3- 0.4+ 060626 104 0.4- 0.0 060629 379 1.0+ 1.1- 060623 204 0.3+ 0.4+ 060626 104 0.2+ 0.5+ 060629 379 0.4+ 0.3- 060623 204 0.5- 0.0 060626 213 0.6- 0.4+ 060629 945 0.3+ 0.8- 060623 204 0.1+ 0.4+ 060626 213 0.5- 0.6+ 060630 945 0.2+ 0.9+ 060624 I77 0.2- 0.2- 060626 213 0.2- 0.8+ 060630 673 0.4+ 0.3- 060624 I77 0.6- 0.4- 060626 104 (2.7+ 0.6+) 060630 673 0.4+ 0.2- 060624 I77 0.2- 0.0 060626 104 1.1- 0.6+ 060630 673 0.1- 0.3- 060624 734 0.2- 0.4+ 060627 423 0.2+ 0.1- 060630 673 0.2+ 0.1- June 26, 2006 12:07:42 UT Comet P/1889 M1 = 2006 M3 ( Barnard 2 ) The following improved orbital elements by Kenji Muraoka, are from 59 observations 1889 June 24 to 2006 June 25, perturbations by 8 Plantes, Moon and 3 minor planets were taken into account. The mean residual is +/- 1.29 arc seconds. Epoch = 2006 Aug. 13.0 TT JDT = 2453960.5 T = 2006 Aug. 28.68684 +/- 0.00276 (m.e.) TT Peri. = 60.46169 +/- 0.00295 Node = 272.06649 +/- 0.00133 (2000.0) Incl. = 31.21749 +/- 0.00034 q = 1.1071827 +/- 0.0000134 AU e = 0.9543984 +/- 0.0000006 a = 24.2794813 +/- 0.0000172 AU nK = 0.00823844 +/- 0.00000001 P = 119.635 +/- 0.0001272 years T = 1889 June 21.23176 TT Epoch = 1889 June 7.0 TT Peri. = 60.14350 e = 0.9539864 Node = 272.54492 (2000.0) a = 23.9703811 AU Incl. = 31.22038 nK = 0.008398305 q = 1.1029634 AU P = 117.358 years Residuals in seconds of arc 890624 662 2.4- 2.6+ 060623 J87 0.2+ 0.3- 060624 734 0.1- 0.3+ 890625 662 (8.0- 2.3+) 060623 J87 0.2+ 0.3+ 060624 734 0.2+ 0.3+ 890626 662 0.6+ 2.1+ 060623 J87 0.3+ 0.3+ 060624 704 0.1+ 0.1+ 890627 662 0.2+ 0.3- 060623 118 0.2- 0.5- 060624 704 0.0 0.3+ 890628 020 (6.5- 2.7+) 060623 118 0.3+ 0.6+ 060624 704 0.1+ 0.8- 890628 045 1.1- 3.4- 060623 J87 0.3+ 0.6+ 060624 H06 1.3- 1.3+ 890630 662 1.5+ 1.6- 060623 118 0.1- 0.5+ 060624 H06 0.7+ 1.3+ 890701 662 0.8+ 0.4+ 060623 118 0.0 0.5- 060624 H06 0.0 0.5+ 890702 662 2.6- 3.1- 060623 118 0.3+ 0.2- 060624 428 0.6- 1.5- 890703 662 (4.8+ 5.6-) 060623 176 0.4+ 0.6+ 060624 428 0.6- 0.8- 890704 662 (2.2+ 6.8-) 060623 176 0.2+ 0.1+ 060624 428 0.1- 0.6- 890705 662 0.5- 2.1- 060623 176 0.4- 0.4+ 060625 H06 0.2+ 0.2+ 890705 045 4.7+ 1.2+ 060623 204 0.1- 0.3+ 060625 H06 0.2+ 0.2- 890706 662 1.5- 4.2- 060623 204 0.5+ 0.3+ 060625 H06 (1.8+ 2.6+) 890708 662 2.5+ 3.9+ 060623 204 0.3- 0.1- 060625 H06 0.2- 0.5- 890710 662 2.5- 1.6+ 060623 204 0.3+ 0.3+ 060625 H06 0.4- 0.4- 890711 662 3.6+ 1.5- 060624 I77 0.0 0.2- 060625 H06 0.5+ 0.4- 890801 662 (0.5- 11.5+) 060624 I77 0.4- 0.5- 060625 H06 0.0 1.1- 890807 662 0.7- 5.1+ 060624 I77 0.0 0.0 060625 213 0.8- 0.5- 060623 704 0.7+ 0.5+ 060624 734 0.0 0.4+ 060625 213 0.7- 0.5- 060623 704 0.1+ 0.6- 060624 734 0.1- 0.3+ 060625 213 1.0- 0.3- 060623 704 0.6+ 0.1+ 060624 734 0.1+ 0.2+ June 24, 2006 00:18:05 UT Comet P/1889 M1 = 2006 M3 ( Barnard 2 ) The following improved orbital elements by Kenji Muraoka, are from 49 observations 1889 June 24 to 2006 June 24, perturbations by 8 Plantes, Moon and 3 minor planets were taken into account. The mean residual is +/- 1.37 arc seconds. Epoch = 2006 Aug. 13.0 TT JDT = 2453960.5 T = 2006 Aug. 28.67460 +/- 0.00309 (m.e.) TT Peri. = 60.45717 +/- 0.00473 Node = 272.06656 +/- 0.00228 (2000.0) Incl. = 31.21714 +/- 0.00038 q = 1.1071316 +/- 0.0000227 AU e = 0.9544007 +/- 0.0000010 a = 24.2795521 +/- 0.0000293 AU nK = 0.00823840 +/- 0.00000001 P = 119.636 +/- 0.0002168 years T = 1889 June 21.23159 TT Epoch = 1889 June 7.0 TT Peri. = 60.13897 e = 0.9539886 Node = 272.54503 (2000.0) a = 23.9703969 AU Incl. = 31.22004 nK = 0.008398297 q = 1.1029119 AU P = 117.358 years Residuals in seconds of arc 890624 662 2.2- 3.5+ 060623 704 0.7+ 1.4+ 060623 204 0.3+ 0.3+ 890625 662 (7.8- 3.0+) 060623 704 0.2+ 0.3+ 060624 I77 0.0 0.2- 890626 662 0.7+ 2.7+ 060623 704 0.6+ 1.0+ 060624 I77 0.4- 0.5- 890627 662 0.2+ 0.3+ 060623 J87 0.2+ 0.2- 060624 I77 0.0 0.1- 890628 020 (6.5- 3.1+) 060623 J87 0.2+ 0.4+ 060624 734 0.0 0.1+ 890628 045 1.2- 3.1- 060623 J87 0.3+ 0.4+ 060624 734 0.2- 0.0 890630 662 1.4+ 1.4- 060623 118 0.1- 0.4- 060624 734 0.1+ 0.1- 890701 662 0.6+ 0.5+ 060623 118 0.3+ 0.7+ 060624 734 0.1- 0.0 890702 662 2.8- 3.1- 060623 J87 0.3+ 0.7+ 060624 734 0.1+ 0.0 890703 662 (4.6+ 5.6-) 060623 118 0.1- 0.5+ 060624 704 0.1+ 0.3- 890704 662 (2.0+ 6.9-) 060623 118 0.0 0.5- 060624 704 0.0 0.1- 890705 662 0.7- 2.3- 060623 118 0.3+ 0.2- 060624 704 0.1+ 1.2- 890705 045 4.5+ 1.0+ 060623 176 0.4+ 0.6+ 060624 H06 1.4- 0.8+ 890706 662 1.7- 4.4- 060623 176 0.2+ 0.1+ 060624 H06 0.7+ 0.8+ 890708 662 2.2+ 3.5+ 060623 176 0.4- 0.4+ 060624 H06 0.1- 0.1+ 890710 662 2.8- 1.2+ 060623 204 0.1- 0.3+ 060624 428 (0.7- 2.3-) 890711 662 3.3+ 2.0- 060623 204 0.5+ 0.4+ 060624 428 0.6- 1.6- 890801 662 (0.3- 10.5+) 060623 204 0.3- 0.1- 060624 428 0.2- 1.4- 890807 662 0.2- 4.0+ --