OAA computing section circular NK 750 C/1998 K2 (LINEAR)
The following improved orbital elements, by S. Nakano, are from 189 observations 1998 May 22 to 2000 Feb. 27. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.81 arc second. Epoch = 1998 Aug. 15.0 TT T = 1998 Sept. 1.22653 +/- 0.00032 (m.e.) TT Peri. = 221.41648 +/- 0.00011 Node = 68.78095 +/- 0.00002 (2000.0) Inc. = 64.45654 +/- 0.00004 q = 2.3234770 +/- 0.0000020 AU e = 0.9992953 +/- 0.0000068 1/a = +0.0003033 +/- 0.0000029 1/AU origin = +0.000532 (Q= 7) future = +0.001245 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 1998/ 980531 360 0.7+ 0.3+ 980730 844 (2.2+ 0.8-) 980522 704 (4.4- 1.6+) 980531 426 0.8+ 0.2- 980802 422 0.4+ 0.3- 980522 704 0.4- 1.4- 980531 360 0.6+ 0.1+ 980802 422 0.3+ 0.2- 980522 704 (5.0- 3.7+) 980531 360 0.4+ 0.3+ 980802 422 0.5+ 0.2- 980522 704 (2.8- 0.5-) 980531 426 0.6+ 0.1- 980805 426 0.4+ 0.7- 980522 704 0.2+ 1.8+ 980531 426 0.5+ 0.2- 980805 426 0.2+ 0.5- 980524 704 1.7- 1.1+ 980531 372 0.5+ 0.1+ 980805 426 0.1+ 1.0- 980524 704 (1.5- 2.2+) 980602 426 0.2- 0.8+ 980814 422 0.2+ 0.9- 980524 704 (9.0- 4.4+) 980602 426 0.3- 0.9+ 980814 422 0.1+ 0.7- 980524 704 (2.1- 6.5+) 980602 426 0.3- 0.8+ 980814 422 0.2+ 0.8- 980524 704 (2.9- 3.0+) 980603 372 0.3- 1.3+ 980814 422 0.3+ 0.8- 980525 422 (3.5- 1.3+) 980603 372 (0.1+ 2.6+) 980826 844 0.5+ 1.1- 980525 422 (0.9- 3.3+) 980604 860 0.8- 2.1- 980826 844 1.0+ 0.2- 980525 422 0.7- 0.4+ 980604 860 0.9- 1.2- 980826 844 0.3- 0.1- 980525 426 0.4- 0.6+ 980604 860 0.1+ 0.3- 980828 426 0.9+ 0.4- 980525 426 0.4- 0.6+ 980606 426 0.8- 0.5- 980828 426 1.1+ 0.7- 980525 426 0.3- 0.4+ 980606 426 0.8- 0.4- 980828 426 1.3+ 0.5- 980525 426 0.4- 0.6+ 980606 426 0.9- 0.5- 980914 844 0.4+ 1.7- 980525 426 0.3- 0.5+ 980608 860 0.3+ 0.1+ 980914 844 1.2+ 1.1- 980526 422 0.6- 0.6+ 980608 860 0.3- 1.0- 980914 844 1.7+ 0.6- 980526 422 0.5- 0.7+ 980608 860 0.5- 1.4- 980926 844 1.7- 1.4+ 980526 422 0.4- 0.6+ 980616 360 0.9+ 0.9- 980926 844 (3.2+ 0.6+) 980526 426 0.5- 0.3+ 980616 360 0.6+ 0.9- 980926 844 (3.4+ 1.2+) 980526 426 0.6- 0.3+ 980616 360 0.6+ 0.8- 981001 844 (3.2+ 1.0+) 980526 426 0.5- 0.3+ 980617 422 1.0+ 0.5- 981001 844 (2.4+ 0.0 ) 980526 402 0.5- 0.7+ 980617 422 0.8+ 0.8- 981001 844 (0.3+ 2.2-) 980526 402 0.4- 0.4+ 980617 422 1.7+ 0.2+ 1999/ 980526 402 0.5- 0.6+ 980617 372 0.1+ 0.3+ 990115 422 1.8- 0.1- 980526 367 1.2- 1.1+ 980617 360 0.2+ 0.9- 990115 422 1.8- 0.3+ 980526 367 0.7- 0.7+ 980617 360 0.6+ 1.1- 990115 422 1.7- 0.2+ 980526 367 0.7- 1.1+ 980619 844 0.1+ 1.3- 990118 859 2.1- 0.7+ 980526 367 1.2- 0.9+ 980619 844 0.2- 0.7- 990118 859 1.8- 0.0 980526 367 0.8- 0.4+ 980619 844 0.2+ 0.9- 990118 859 1.5- 0.6+ 980526 900 1.4- 1.4+ 980620 844 0.9+ 1.4- 990930 704 (2.5+ 0.4+) 980526 900 1.5- 1.0+ 980620 844 0.2+ 1.4- 990930 704 0.3+ 0.3- 980526 867 0.6- 0.5+ 980620 844 0.4+ 1.6- 990930 704 1.6+ 0.1+ 980526 867 0.3- 0.7+ 980620 897 1.6+ 0.3- 990930 704 0.4+ 0.3- 980526 867 0.8- 0.8+ 980620 897 (1.5+ 3.9-) 991113 704 2.1+ 0.8+ 980526 046 0.5- 0.8+ 980621 860 0.3- 0.4- 991113 704 (3.0+ 1.2+) 980526 046 0.7- 0.8+ 980621 860 0.5- 0.9- 991113 704 1.5+ 1.3+ 980526 046 0.7- 0.7+ 980621 860 0.8- 0.2- 991113 704 1.9+ 1.0+ 980526 046 0.6- 0.7+ 980624 860 0.1- 1.3- 991113 704 (2.6+ 0.3-) 980527 367 0.9- 0.4+ 980624 860 1.0+ 0.7- 991113 474 2.0+ 1.6- 980527 367 0.9- 0.1+ 980625 426 0.7+ 0.5- 991113 474 (2.3+ 2.2-) 980527 367 1.6- 0.4+ 980625 426 0.6+ 0.6- 991113 474 (2.3+ 2.0-) 980527 426 0.9- 0.5+ 980625 426 0.6+ 0.6- 991115 474 0.8+ 0.7- 980527 402 0.6- 0.7+ 980626 422 0.9+ 0.5- 991115 474 1.9+ 1.2- 980527 402 0.6- 0.6+ 980626 422 0.8+ 0.6- 991130 704 2.0+ 0.2- 980527 402 0.7- 0.6+ 980626 422 0.9+ 0.7- 991130 704 1.3+ 0.4+ 980527 426 0.9- 0.3+ 980627 372 (1.3+ 2.3+) 991130 704 1.4+ 0.7- 980527 900 1.1- 0.8+ 980628 372 0.6+ 1.1+ 991130 704 1.0+ 0.0 980527 372 1.4- 0.9+ 980629 897 1.3+ 1.1- 991130 704 0.1+ 0.3- 980527 426 0.8- 0.3+ 980629 897 0.0 1.4- 991202 897 0.2+ 0.4- 980527 900 1.1- 1.0+ 980629 897 0.7+ 0.4- 991202 897 0.5- 2.0+ 980527 360 0.6- 0.3+ 980703 860 0.4- 0.2+ 991202 897 0.1+ 0.1+ 980527 372 0.5- 0.9+ 980703 860 0.9+ 0.1+ 991203 360 0.1- 0.1- 980527 360 0.7- 0.5+ 980703 860 0.6+ 0.8- 991203 360 0.1- 0.0 980527 426 1.0- 0.4+ 980710 426 0.0 0.1- 991203 360 0.5- 0.1- 980527 360 0.8- 0.3+ 980710 426 0.0 0.0 991216 402 0.1+ 0.1- 980528 422 1.1- 0.7+ 980710 426 0.0 0.2- 991216 402 0.2+ 0.3- 980528 422 0.9- 0.6+ 980710 426 0.0 0.2- 991231 704 0.1- 0.0 980528 422 1.2- 0.2+ 980711 422 0.1+ 0.1- 991231 704 0.4+ 0.5- 980529 860 0.3+ 1.7- 980711 422 0.3- 0.1- 991231 704 0.6+ 0.4- 980529 860 0.1- 1.4- 980711 422 0.1- 0.2- 991231 704 0.1- 0.5- 980529 860 (0.7+ 2.2-) 980711 422 0.4- 0.3- 991231 704 0.1- 0.0 980529 422 0.8- 0.8- 980719 422 0.6+ 1.1- 2000/ 980529 422 0.1- 0.4- 980719 422 0.7+ 0.9- 000108 402 0.6- 0.2+ 980529 422 0.8+ 0.3+ 980719 422 0.5+ 1.0- 000108 402 0.4+ 0.7- 980530 372 0.1+ 0.4+ 980722 322 1.0+ 0.9- 000108 402 0.2- 0.1- 980531 422 0.0 0.2- 980722 322 1.5+ 1.3- 000227 360 0.0 1.9+ 980531 422 0.3+ 0.2+ 980722 322 1.3+ 0.8- 000227 360 0.1- 1.1+ 980531 422 0.2+ 0.1+ 980730 844 1.6+ 0.9- 000227 360 (0.2- 2.2+) 980531 372 0.8- 0.3- 980730 844 (3.0+ 0.7-) ( ) -------- Rejected Obs.
Director, Computing Section Later edition Syuichi Nakano 2000 Dec. 20