OAA computing section circular NK 1085 C/2003 J1 (NEAT)

The following improved orbital elements, by S. Nakano, are from 70 observations 2003 May 13 to 2004 June 25. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.49 arc second. Epoch = 2003 Oct. 8.0 TT T = 2003 Oct. 10.55446 +/- 0.00466 (m.e.) TT Peri. = 196.02278 +/- 0.00052 Node = 122.03282 +/- 0.00002 (2000.0) Inc. = 98.31186 +/- 0.00008 q = 5.1254257 +/- 0.0000139 AU e = 0.9910464 +/- 0.0000235 1/a = +0.0017469 +/- 0.0000046 1/AU origin = +0.001938 (Q= 7) future = +0.001902 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2003/ 030519 620 0.4- 1.0+ 030719 859 (4.1- 2.8-) 030513 608 0.0 0.1- 030525 673 0.0 0.1+ 030726 900 0.6+ 0.8+ 030513 608 0.2+ 0.5- 030525 673 0.0 0.1+ 030726 900 0.6+ 0.5- 030513 608 0.2+ 0.1- 030525 673 0.2+ 0.1+ 030729 859 0.3- 0.4+ 030514 620 0.6+ 0.7- 030531 246 0.3+ 0.2+ 030729 859 0.1+ 0.7+ 030514 926 0.2+ 0.3+ 030531 246 0.3+ 0.1+ 030729 859 0.4+ 0.0 030514 926 0.3- 0.2+ 030531 246 0.7- 0.4- 030729 428 0.5+ 0.4- 030514 926 0.2- 0.2+ 030531 246 0.1+ 0.1- 030729 428 0.0 0.5- 030515 620 0.8- 0.8+ 030531 246 0.1- 0.3- 030730 428 0.2- 0.1- 030515 620 1.0- 0.3- 030531 246 0.6- 0.1+ 030802 E14 0.0 0.1+ 030515 673 0.3+ 0.3+ 030605 360 0.2+ 0.2- 030802 E14 0.3- 0.0 030515 673 0.3+ 0.4- 030605 360 0.6+ 0.1- 030802 E14 0.4- 0.2+ 030515 673 0.5+ 0.1+ 030605 360 0.8+ 0.2+ 030802 360 0.4+ 0.0 030515 673 0.4+ 0.2+ 030622 204 0.4- 0.4+ 030802 360 0.3+ 0.0 030515 673 0.4+ 0.1- 030622 204 0.4- 0.6+ 030903 E14 0.4- 0.6+ 030515 673 0.5+ 0.2+ 030625 704 0.2- 1.0- 030903 E14 (1.8+ 2.2+) 030515 673 0.4+ 0.2+ 030625 704 0.4- 1.4- 030903 E14 1.0+ 0.2+ 030518 859 (2.9- 0.7-) 030625 704 0.2- 0.6- 2004/ 030518 859 0.7- 0.9- 030625 704 0.4+ 0.9- 040624 E12 0.5- 0.3- 030518 859 (2.5- 0.7+) 030702 704 0.8- 1.2+ 040624 E12 0.1- 0.6+ 030518 926 0.3+ 0.9+ 030702 704 0.9- 0.6- 040624 E12 0.2- 0.3+ 030518 926 0.0 0.8+ 030702 704 0.5- 0.2- 040624 E12 0.3+ 0.2+ 030518 926 1.8+ 0.5- 030702 704 0.5- 0.0 040625 859 0.5+ 0.3- 030518 926 0.1+ 0.6+ 030702 704 0.5- 0.1- 040625 859 0.3+ 0.6- 030519 620 0.3+ 0.1- 030719 859 0.4- 0.3+ 040625 859 (8.1- 3.9+) 030519 620 0.5- 0.2- 030719 859 0.2- 0.6- ( ) -------- Rejected Obs.

Director, Computing Section Syuichi Nakano 2004 July 19

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