January 15, 2003 11:25 UT Orbital elements: P/2003 A1 = D/1783 W1 ? T 2003 Feb 2.1286 TT Sato q 1.911246 (2000.0) P Q n 0.1428539 Peri. 357.4775 +0.5940994 -0.5432687 a 3.624166 Node 55.2767 +0.7500747 +0.1077468 e 0.472638 Incl. 46.1992 +0.2905750 +0.8326162 P 6.90 From 49 observations 2003 Jan. 5-15, mean residual 0".69. Epoch 1783 Nov. 10.0 TT = JDT 2372600.5 T 1783 Oct. 21.129 +/- 30 TT Sato q 　1.62351 (2000.0) P Q n 0.150751 Peri. 350.658　 +0.613938 -0.498920 a 3.49645 Node 58.345　 +0.762667 +0.175131 e 0.53567 Incl. 45.939 +0.203518 +0.848768 P 6.54 From 49 observations 2003 Jan. 5-15, mean residual 0".69. Residuals in seconds of arc 030105 704 0.1- 0.9+ 030106 474 1.9+ 1.9+ 030108 246 0.4- 0.1- 030105 704 0.9- 0.3+ 030107 704 1.3+ 1.8+ 030108 246 1.2- 0.1- 030105 704 0.4- 0.7+ 030107 704 0.4- 0.0 030108 246 0.0 0.1+ 030106 446 0.2- 0.7- 030107 858 0.1+ 0.1- 030108 246 0.3- 0.0 030106 446 0.5- 1.0- 030107 858 0.0 0.4+ 030108 557 0.6+ 0.7+ 030106 446 0.4+ 0.4- 030107 704 (3.1+ 1.3+) 030108 557 0.0 0.1+ 030106 446 0.5- 0.5- 030107 704 0.9- 0.8+ 030108 557 0.6- 0.1- 030106 446 0.8- 0.4- 030107 858 0.5+ 0.5+ 030108 557 0.1- 0.4+ 030106 446 0.2+ 0.1+ 030107 608 0.2- 0.2- 030108 557 0.3- 0.5- 030106 448 0.2+ 0.7- 030107 608 0.2- 0.5+ 030108 176 0.9+ 0.3+ 030106 670 (0.3+ 2.6+) 030107 608 0.1- 0.1+ 030108 176 0.1+ 0.8- 030106 448 1.6- 1.4- 030108 858 0.9+ 0.0 030108 176 0.6- 1.7- 030106 670 (0.9- 3.1+) 030108 858 1.5+ 0.4+ 030111 213 0.1+ 1.0+ 030106 448 0.0 0.8- 030108 608 0.5- 0.4- 030111 213 0.1- 0.3+ 030106 474 1.0+ 0.0 030108 608 0.7- 0.7- 030115 448 0.1- 0.3- 030106 474 1.3+ 0.7+ 030108 608 0.5- 0.7- 030115 448 0.2+ 0.1+ 030106 474 1.4+ 1.0- 030108 246 0.8- 0.7+ 030115 448 0.2+ 0.1- 030106 474 (2.2- 4.4-) 030108 246 0.2+ 0.1- January 12, 2003 21:35 UT Orbital elements: P/2003 A1 T 2003 Feb. 1.6495 TT Sato q 1.916586 (2000.0) P Q n 0.1363442 Peri. 357.2684 +0.5974195 -0.5399582 a 3.738623 Node 55.1795 +0.7487687 +0.1108818 e 0.487355 Incl. 46.2382 +0.2871157 +0.8343563 P 7.23 From 46 observations 2003 Jan. 5-11, mean residual 0".71. Orbital elements: P/2003 A1 Epoch 1783 July 13.0 TT = JDT 2372480.5 T 1783 July 2.553 TT Sato q 　1.57186 　　　　　　 (2000.0) P Q n 0.146200 Peri. 2.306 +0.484270 -0.626178 a 3.56865 Node 59.398 +0.790934 +0.014741 e 0.55954 Incl. 45.229 +0.374041 +0.779541 P 6.7 From 46 observations 2003 Jan. 5-11, mean residual 0".71. January 9, 2003 16:20 UT Orbital elements: C/2003 A1 T 2003 Jan. 27.2670 TT Sato q 1.944424 (2000.0) P Q n 0.1147178 Peri. 354.8524 +0.6263659 -0.5056520 a 4.194840 Node 54.6569 +0.7386513 +0.1417734 e 0.536473 Incl. 46.6626 +0.2491184 +0.8510090 P 8.6 From 44 observations 2003 Jan. 5-8, mean residual 0".70. Orbital elements: C/2003 A1 T 2003 Jan. 8.0001 TT Sato q 2.126045 (2000.0) P Q Peri. 346.3571 +0.7271680 -0.3530468 Node 51.4368 +0.6790143 +0.2439607 e 1.0 Incl. 48.8429 +0.1008277 +0.9032393 From 40 observations 2003 Jan. 6-8, mean residual 0".83. --