October 31, 2004 13:08:35 UT Orbit-1 Orbital elements: C/2004 S1 (Van Ness) T 2004 Dec. 8.9210 TT Sato q 0.681760 (2000.0) P Q Peri. 92.8171 +0.0908092 -0.9498743 Node 19.2197 -0.7370098 -0.2661258 e 1.0 Incl. 114.6667 +0.6697539 -0.1640603 From 90 observations 2004 Sept. 26-Oct. 18, mean residual 0".98. Residuals in seconds of arc 040926 699 (0.2- 2.1+) 041003 A13 (2.3- 1.2-) 041011 J78 0.4+ 1.6+ 040926 699 (3.0- 1.3+) 041004 A13 (1.8- 2.6-) 041011 A32 0.3- 1.0+ 040926 699 0.0 0.6+ 041004 A13 1.5- 1.3- 041012 785 1.8- 1.1- 040926 699 0.5+ 1.0+ 041004 A13 0.6- 1.4- 041012 785 1.4+ 0.2- 040926 A13 (1.0+ 2.6-) 041004 A13 0.0 1.1- 041012 415 1.1- 0.4+ 040926 A13 0.3+ 0.3+ 041004 A13 1.7- 1.9- 041012 415 0.2- 1.1+ 040926 A13 0.3- 0.9- 041005 D74 (1.9- 4.1-) 041012 415 1.2- 1.2+ 040926 A13 0.4+ 0.0 041005 D74 (6.6- 1.3+) 041012 360 (2.5- 2.5+) 040927 854 0.9- 1.9+ 041005 D74 0.4- 0.7- 041012 415 0.5+ 1.3- 040927 854 0.7+ 1.4+ 041006 D74 (1.6- 5.0-) 041012 415 (2.5- 1.3+) 040927 854 0.2+ 1.3+ 041006 D74 (1.3+ 2.4-) 041012 360 (1.9- 2.6+) 040927 854 1.1+ 0.8+ 041006 D74 1.1- 1.2- 041012 360 (3.3- 2.5+) 040927 854 0.2- 1.2+ 041006 360 0.0 1.9- 041012 246 0.3- 1.0+ 040927 699 0.4+ 0.8+ 041006 360 0.7+ 0.3- 041012 246 1.0- 1.1+ 040927 699 0.8- 0.4+ 041006 360 0.1+ 1.8- 041012 246 0.0 0.6+ 040927 699 (2.1- 2.3+) 041006 360 0.0 1.0- 041012 246 1.6- 1.2+ 040927 854 0.3+ 0.7+ 041007 349 0.5+ 0.7- 041012 246 0.4- 1.4+ 040927 699 0.4- 0.6+ 041007 349 0.3+ 0.9- 041012 246 0.4- 0.6+ 040928 673 1.7+ 1.7+ 041007 349 1.3+ 0.0 041012 246 0.2- 1.4+ 040928 854 1.0- 0.4+ 041007 349 1.2+ 0.1- 041012 246 0.2+ 0.1- 040928 854 0.2- 0.7+ 041007 349 0.9+ 0.2- 041012 246 0.8- 1.0+ 040928 673 (4.5+ 0.3-) 041008 415 (2.4+ 0.1-) 041012 246 1.0- 1.9+ 040928 854 1.3+ 0.5+ 041008 415 0.4+ 0.5+ 041012 246 1.6- 1.2+ 040928 673 (3.3+ 0.8+) 041008 415 (2.1+ 0.1-) 041012 246 0.1+ 0.6+ 040928 673 (2.7+ 0.8+) 041008 415 (2.4+ 1.7+) 041013 A33 1.1- 1.1+ 040928 673 (3.5+ 0.0 ) 041008 176 1.1+ 0.8+ 041015 415 (2.9+ 2.3-) 040928 673 (2.6+ 0.7+) 041008 176 1.4+ 0.5+ 041015 415 0.5+ 1.2- 040928 474 (3.2+ 1.2+) 041008 176 1.3+ 0.5+ 041015 415 (4.5+ 1.0-) 040928 474 1.8- 0.7+ 041008 176 1.6+ 0.3+ 041015 213 1.7+ 1.4- 040929 213 (2.3+ 0.1+) 041009 415 0.1+ 1.5+ 041015 213 1.2+ 0.5- 040929 213 (2.5+ 0.9+) 041009 415 (1.1+ 3.1+) 041015 213 (3.4+ 2.6-) 040929 213 1.9+ 0.6+ 041009 415 (3.0+ 3.5+) 041015 213 (3.4+ 2.7-) 041003 104 (2.1- 1.6-) 041009 415 0.4+ 1.6+ 041015 J78 (2.2+ 1.4-) 041003 104 0.8+ 1.2- 041010 213 (0.2- 2.6+) 041016 D70 0.0 1.2- 041003 104 0.7- 0.5- 041010 213 (0.2- 2.9+) 041016 D70 (3.6- 0.4-) 041003 104 (2.9- 1.0-) 041010 213 (0.3- 2.6+) 041017 349 0.0 0.1+ 041003 246 0.1+ 0.4- 041010 J78 (2.3+ 2.5+) 041017 349 0.7- 1.1+ 041003 246 0.2+ 0.8- 041011 900 1.6+ 0.3- 041017 349 0.9- 0.3+ 041003 246 0.6- 0.9- 041011 900 (5.7+ 1.2-) 041018 246 0.8+ 2.0- 041003 246 1.1- 0.6- 041011 952 (0.7- 2.3+) 041018 246 (2.1+ 2.3-) 041003 246 0.4- 0.8- 041011 952 (1.0- 2.3+) 041018 246 0.4+ 1.0- 041003 246 0.4- 1.2- 041011 952 (0.9- 2.4+) 041018 246 (0.0 2.5-) 041003 213 0.7- 1.5- 041011 952 (0.8- 2.2+) 041018 246 1.7+ 1.4- 041003 213 0.8- 1.6- 041011 952 (0.7- 2.4+) 041020 213 (4.4+ 2.9-) 041003 213 0.5- 1.9- 041011 952 (0.6- 2.4+) 041020 213 (3.2+ 2.5-) 041003 213 0.2- 1.7- 041011 952 (0.7- 2.4+) 041020 213 (3.9+ 2.5-) 041003 A13 (6.2- 4.0-) 041011 A32 1.3+ 0.2- 041021 A18 (5.2+ 3.1-) 041003 A13 1.3- 1.1- 041011 A32 0.1- 0.1- 041022 213 (6.2+ 2.8-) 041003 A13 (2.7- 0.9-) 041011 A32 0.5- 0.7+ 041003 A13 (2.5- 1.8-) 041011 A32 (1.8- 2.0+) Orbit-2 Orbital elements: C/2004 S1 (Van Ness) T 2004 Dec. 9.0058 TT Sato q 0.680192 (2000.0) P Q z +0.004423 Peri. 93.0153 +0.0871534 -0.9502008 Node 19.2132 -0.7372648 -0.2635109 e 0.996992 Incl. 114.6048 +0.6699588 -0.1663746 From 103 observations 2004 Sept. 26-Oct. 20, mean residual 1".13. Residuals in seconds of arc 040926 699 0.0 2.1+ 041003 A13 (2.7- 1.5-) 041011 J78 0.6+ 1.6+ 040926 699 (2.8- 1.3+) 041004 A13 (2.2- 2.8-) 041011 A32 0.0 1.0+ 040926 699 0.2+ 0.6+ 041004 A13 1.8- 1.5- 041012 785 1.5- 1.0- 040926 699 0.7+ 1.0+ 041004 A13 1.0- 1.7- 041012 785 1.7+ 0.2- 040926 A13 (1.1+ 2.6-) 041004 A13 0.4- 1.4- 041012 415 0.8- 0.4+ 040926 A13 0.4+ 0.2+ 041004 A13 2.1- 2.1- 041012 415 0.1+ 1.1+ 040926 A13 0.2- 0.9- 041005 D74 (2.2- 4.4-) 041012 415 0.9- 1.3+ 040926 A13 0.6+ 0.0 041005 D74 (6.9- 1.0+) 041012 360 (2.2- 2.6+) 040927 854 0.9- 1.9+ 041005 D74 0.8- 0.9- 041012 415 0.8+ 1.3- 040927 854 0.7+ 1.4+ 041006 D74 (1.9- 5.3-) 041012 415 2.2- 1.3+ 040927 854 0.3+ 1.3+ 041006 D74 (1.1+ 2.7-) 041012 360 (1.6- 2.7+) 040927 854 1.2+ 0.7+ 041006 D74 1.3- 1.5- 041012 360 (3.0- 2.6+) 040927 854 0.1- 1.1+ 041006 360 0.3- 2.1- 041012 246 0.0 1.2+ 040927 699 0.4+ 0.7+ 041006 360 0.4+ 0.6- 041012 246 0.7- 1.2+ 040927 699 0.8- 0.4+ 041006 360 0.2- 2.1- 041012 246 0.3+ 0.8+ 040927 699 (2.1- 2.3+) 041006 360 0.2- 1.3- 041012 246 1.3- 1.3+ 040927 854 0.3+ 0.7+ 041007 349 0.3+ 1.0- 041012 246 0.1- 1.5+ 040927 699 0.3- 0.5+ 041007 349 0.2+ 1.2- 041012 246 0.1- 0.8+ 040928 673 1.6+ 1.6+ 041007 349 1.2+ 0.3- 041012 246 0.1+ 1.5+ 040928 854 1.1- 0.4+ 041007 349 1.1+ 0.4- 041012 246 0.5+ 0.0 040928 854 0.3- 0.6+ 041007 349 0.8+ 0.5- 041012 246 0.5- 1.1+ 040928 673 (4.4+ 0.4-) 041008 415 (2.4+ 0.4-) 041012 246 0.7- 2.0+ 040928 854 1.2+ 0.4+ 041008 415 0.4+ 0.2+ 041012 246 1.3- 1.4+ 040928 673 (3.2+ 0.8+) 041008 415 2.1+ 0.4- 041012 246 0.4+ 0.8+ 040928 673 (2.6+ 0.8+) 041008 415 (2.4+ 1.4+) 041013 A33 0.8- 1.3+ 040928 673 (3.4+ 0.0 ) 041008 176 1.2+ 0.5+ 041015 415 (2.8+ 1.8-) 040928 673 (2.5+ 0.7+) 041008 176 1.4+ 0.2+ 041015 415 0.4+ 0.7- 040928 474 (3.1+ 1.1+) 041008 176 1.3+ 0.3+ 041015 415 (4.4+ 0.5-) 040928 474 1.9- 0.6+ 041008 176 1.6+ 0.0 041015 213 1.5+ 0.8- 040929 213 2.0+ 0.0 041009 415 0.2+ 1.3+ 041015 213 0.9+ 0.1+ 040929 213 2.2+ 0.8+ 041009 415 (1.2+ 2.8+) 041015 213 (3.1+ 2.0-) 040929 213 1.6+ 0.5+ 041009 415 (3.1+ 3.3+) 041015 213 (3.2+ 2.1-) 041003 104 (2.6- 1.8-) 041009 415 0.4+ 1.3+ 041015 J78 1.9+ 0.8- 041003 104 0.4+ 1.5- 041010 213 (0.1+ 2.5+) 041016 D70 0.5- 0.5- 041003 104 1.1- 0.7- 041010 213 (0.0 2.8+) 041016 D70 (4.0- 0.3+) 041003 104 (3.3- 1.2-) 041010 213 (0.1- 2.5+) 041017 349 0.8- 0.9+ 041003 246 0.3- 0.6- 041010 J78 (2.5+ 2.4+) 041017 349 1.5- 1.9+ 041003 246 0.2- 1.0- 041011 900 1.9+ 0.4- 041017 349 1.7- 1.1+ 041003 246 1.1- 1.2- 041011 900 (6.0+ 1.3-) 041018 246 0.5- 1.1- 041003 246 1.5- 0.8- 041011 952 (0.4- 2.3+) 041018 246 0.8+ 1.4- 041003 246 0.8- 1.0- 041011 952 (0.7- 2.3+) 041018 246 1.0- 0.2- 041003 246 0.9- 1.4- 041011 952 (0.6- 2.4+) 041018 246 1.3- 1.6- 041003 213 1.2- 1.8- 041011 952 0.5- 2.2+ 041018 246 0.4+ 0.5- 041003 213 1.3- 1.8- 041011 952 (0.4- 2.4+) 041020 213 2.3+ 2.1- 041003 213 1.0- 2.1- 041011 952 (0.3- 2.4+) 041020 213 1.1+ 1.7- 041003 213 0.6- 2.0- 041011 952 (0.4- 2.4+) 041020 213 1.8+ 1.6- 041003 A13 (6.7- 4.3-) 041011 A32 1.6+ 0.2- 041021 A18 (2.8+ 2.3-) 041003 A13 1.7- 1.3- 041011 A32 0.2+ 0.1- 041022 213 (3.5+ 2.0-) 041003 A13 (3.1- 1.2-) 041011 A32 0.2- 0.7+ 041003 A13 (2.9- 2.0-) 041011 A32 1.5- 2.0+ October 14, 2004 21:53:13 UT Orbit-1 Orbital elements: C/2004 S1 (Van Ness) T 2004 Dec. 8.9225 TT Sato q 0.681817 (2000.0) P Q Peri. 92.8133 +0.0908795 -0.9498673 Node 19.2199 -0.7370027 -0.2661779 e 1.0 Incl. 114.6677 +0.6697522 -0.1640164 From 55 observations 2004 Sept. 26-Oct. 8, mean residual 0".92. Orbit-2 Orbital elements: C/2004 S1 (Van Ness) T 2004 Dec. 8.2504 TT Sato q 0.693745 (2000.0) P Q z -0.034789 Peri. 91.3030 +0.1187059 -0.9469175 Node 19.2701 -0.7347393 -0.2861555 e 1.024135 Incl. 115.1408 +0.6678826 -0.1465004 From 67 observations 2004 Sept. 26-Oct. 11, mean residual 0".81. October 05, 2004 10:54:17 UT Orbit-1 Orbital elements: C/2004 S1 (Van Ness) T 2004 Dec. 8.9126 TT Sato q 0.681404 (2000.0) P Q Peri. 92.8414 +0.0904124 -0.9499219 Node 19.2182 -0.7371599 -0.2657882 e 1.0 Incl. 114.6699 +0.6696424 -0.1643320 From 44 observations 2004 Sept. 26-Oct. 4, mean residual 0".78. Orbit-2 Orbital elements: C/2004 S1 (Van Ness) T 2004 Dec. 10.2128 TT Sato q 0.657650 (2000.0) P Q n 0.0172125 Peri. 95.9152 +0.0336137 -0.9533764 a 14.856160 Node 19.1198 -0.7399069 -0.2254637 e 0.955732 Incl. 113.7059 +0.6718689 -0.2005981 P 57.3 From 46 observations 2004 Sept. 26-Oct. 4, mean residual 0".76. September 30, 2004 21:48:02 UT Orbital elements: C/2004 S1 (Van Ness) T 2004 Dec. 8.8940 TT Sato q 0.680783 (2000.0) P Q Peri. 92.8823 +0.0896716 -0.9500005 Node 19.2151 -0.7372697 -0.2652197 e 1.0 Incl. 114.6621 +0.6696211 -0.1647952 From 26 observations 2004 Sept. 26-29, mean residual 0".79. September 28, 2004 18:53:52 UT Orbital elements: C/2004 S1 (Van Ness) T 2004 Dec. 9.0996 TT Sato q 0.686803 (2000.0) P Q Peri. 92.5002 +0.0962290 -0.9491518 Node 19.2567 -0.7352703 -0.2707696 e 1.0 Incl. 114.6483 +0.6709080 -0.1606075 From 18 observations 2004 Sept. 26-28, mean residual 0".58. --