OAA computing section circular NK 767 C/1999 F1 (Catalina)

The following improved orbital elements, by S. Nakano, are from 81 observations 1999 Mar. 13 to 2000 July 9. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.61 arc second. Epoch = 2002 Feb. 15.0 TT T = 2002 Feb. 13.75214 +/- 0.01101 (m.e.) TT Peri. = 255.16458 +/- 0.00134 Node = 20.01256 +/- 0.00002 (2000.0) Inc. = 92.03009 +/- 0.00013 q = 5.7871330 +/- 0.0001217 AU e = 0.9988243 +/- 0.0000488 1/a = +0.0002032 +/- 0.0000084 1/AU origin = +0.000031 (Q= 7) future = +0.000025 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 1999/ 990419 422 0.1- 1.2+ 990614 867 0.9+ 0.4+ 990313 691 0.1+ 0.0 990419 422 0.1- 1.5+ 990614 867 0.5+ 0.1- 990313 691 0.2+ 0.2+ 990419 046 0.5+ 0.1- 990707 360 0.2+ 0.2- 990313 691 0.4+ 0.3+ 990419 046 0.9+ 0.0 990707 360 0.0 0.2- 990323 703 (0.3- 2.1+) 990419 046 0.1- 0.4- 2000/ 990323 703 0.3- 0.4- 990419 046 0.5- 0.4- 000229 360 0.0 0.8- 990323 703 0.8- 0.2- 990419 118 1.4+ 0.2- 000229 360 0.1- 0.3- 990323 703 (0.0 2.1-) 990420 118 0.7- 0.8+ 000301 402 0.1+ 0.1- 990323 703 (0.3- 3.6-) 990420 118 1.8- 0.6+ 000301 402 0.1- 0.0 990415 704 1.1+ 0.8- 990420 860 1.4+ 0.5- 000301 402 0.0 0.1- 990415 704 0.3+ 1.0- 990420 860 1.3+ 0.4+ 000306 474 0.5- 0.5+ 990415 704 0.5- 1.2- 990420 860 0.2+ 0.9- 000306 474 0.4- 0.3+ 990415 704 1.5- 1.4- 990420 658 0.6+ 0.2+ 000306 474 0.2- 0.5+ 990415 704 (2.5- 1.5-) 990420 658 0.2+ 0.2+ 000313 360 0.1+ 0.3- 990416 703 0.3- 0.3- 990420 658 0.9- 0.2- 000313 360 0.2- 0.2- 990416 703 0.8+ 0.3- 990424 658 0.1- 0.7+ 000407 860 1.3+ 1.2+ 990417 703 0.8- 0.7+ 990424 658 0.0 0.4+ 000407 860 0.8+ 0.1- 990417 703 0.1- 0.2+ 990424 658 0.0 0.6+ 000424 860 0.7- 0.4- 990417 703 0.1+ 0.3- 990506 402 0.3- 0.1- 000424 860 0.4+ 0.3- 990417 703 0.3+ 0.8- 990506 402 0.8- 0.3+ 000424 860 0.7- 0.4- 990417 557 1.0- 0.6- 990506 402 0.8- 0.7- 000428 360 0.0 0.5- 990417 557 0.4- 0.8- 990506 372 0.2- 0.0 000428 360 0.4- 0.4- 990417 557 0.3+ 0.1+ 990506 360 0.1- 0.1- 000507 699 0.5+ 0.0 990418 703 0.7+ 0.6- 990506 360 0.0 0.1+ 000507 699 0.8+ 0.2+ 990418 703 0.7- 1.0+ 990506 360 0.4+ 0.1- 000507 699 0.5+ 0.3+ 990418 703 0.1+ 0.4- 990507 372 0.4- 1.0- 000507 699 0.5- 0.3- 990418 428 0.8+ 0.0 990513 360 0.3- 0.3+ 000709 860 0.7- 1.0+ 990418 428 0.6- 0.6+ 990513 360 0.3- 0.4+ 000709 860 (2.7- 0.1+) 990419 422 0.8+ 1.7+ 990513 360 0.7- 0.3+ 990419 422 0.6+ 1.2+ 990614 867 0.1+ 0.2- ( ) -------- Rejected Obs.

Director, Computing Section Syuichi Nakano 2000 Dec. 21

Back to Nakano Note Page