OAA computing section circular NK 1514 C/1999 J4 (LINEAR)
The following improved orbital elements, by S. Nakano, are from 39 observations 1999 May 15 to Sept. 9. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.75 arc second. See an orbit on MPC 34734. Below observations were included as the last observations: CJ99J040 C1999 09 09.43360 13 45 33.04 +43 17 59.2 18.0 T 402 CJ99J040 C1999 09 09.43682 13 45 33.00 +43 17 56.5 402 Epoch = 1999 Dec. 8.0 TT T = 1999 Nov. 20.11665 +/- 0.09401 (m.e.) TT Peri. = 95.70611 +/- 0.01751 Node = 264.52034 +/- 0.00327 (2000.0) Inc. = 118.92336 +/- 0.00130 q = 3.7707254 +/- 0.0004399 AU e = 1.0014596 +/- 0.0001813 1/a = -0.0003871 +/- 0.0000481 1/AU origin = +0.000439 (Q= 6) future = +0.000589 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 1999/ 990516 118 0.5+ 0.7- 990517 557 0.5- 0.4+ 990515 704 1.6+ 0.9- 990516 118 0.1+ 0.2- 990520 402 1.7- 1.0+ 990515 704 (2.8+ 1.8-) 990517 704 0.4+ 1.0+ 990520 402 1.5- 0.6+ 990515 704 (2.9+ 0.3-) 990517 704 1.3- 0.8+ 990520 402 1.1- 1.1+ 990515 704 1.0+ 1.8- 990517 704 0.8+ 0.9+ 990520 372 0.3- 0.6- 990516 557 0.1+ 0.3- 990517 704 0.5- 0.1- 990520 360 0.4- 0.2+ 990516 557 0.2- 0.2- 990517 684 0.6+ 0.4+ 990520 360 0.9- 1.0+ 990516 557 0.7+ 0.3+ 990517 684 0.7+ 1.0+ 990520 360 0.5- 0.1- 990516 046 0.7+ 0.3- 990517 704 0.1+ 0.3+ 990520 372 1.4- 0.1+ 990516 046 0.3- 0.2- 990517 670 (1.1+ 3.1-) 990611 867 0.9+ 0.3+ 990516 046 0.5+ 1.1- 990517 670 (2.1+ 2.3-) 990611 867 1.0+ 0.1- 990516 046 0.2+ 1.1- 990517 118 0.4+ 0.3- 990611 867 0.3+ 0.1- 990516 046 0.1+ 0.4+ 990517 118 0.6+ 0.4+ 990909 402 0.3+ 0.9+ 990516 046 0.2+ 0.4- 990517 118 1.2- 0.5+ 990909 402 0.5- 1.1- 990516 118 0.9+ 1.2- 990517 557 0.7- 0.7- ( ) -------- Rejected Obs.
Director, Computing Section Late edition Syuichi Nakano 1999 Sept. 27