OAA computing section circular NK 715 94P/Russell 4
The following improved orbital elements, by S. Nakano, are from 138 observations 1984-1997. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.72 arc second. Epoch = 1997 Feb. 1.0 TT T = 1997 Feb. 3.49935 +/- 0.00038 (m.e.) TT Peri. = 93.27037 +/- 0.00024 Node = 70.96967 +/- 0.00021 (2000.0) Inc. = 6.18811 +/- 0.00002 q = 2.2292750 +/- 0.0000014 AU e = 0.3650983 +/- 0.0000004 a = 3.5112129 +/- 0.0000009 AU n' = 0.14980225 +/- 0.00000006 P = 6.579 +/- 0.0000024 years T = 1984 Jan. 5.95844 TT Epoch = 1984 Jan. 21.0 TT Peri. = 91.29047 e = 0.3832681 Node = 72.53639 (2000.0) a = 3.4449786 AU Inc. = 6.24783 n'= 0.15414317 q = 2.1246281 AU P = 6.394 years T = 1990 July 6.82779 TT Epoch = 1990 July 8.0 TT Peri. = 93.04339 e = 0.3663131 Node = 71.03747 (2000.0) a = 3.5067936 AU Inc. = 6.19137 n'= 0.15008551 q = 2.2222093 AU P = 6.567 years The predicted orbit for the 2003 return is as follows: T = 2003 Aug. 29.23291 TT Epoch = 2003 Aug. 29.0 TT Peri. = 92.94110 e = 0.3648431 Node = 70.93830 (2000.0) a = 3.5127469 AU Inc. = 6.18484 n'= 0.14970413 q = 2.2311455 AU P = 6.584 years The following residuals in seconds of arc are from the above orbital elements: 1984/ 891211 675 0.6+ 0.3- 970120 402 0.6+ 0.0 840302 413 0.4- 1.8+ 891211 675 0.5+ 0.1+ 970120 402 0.6+ 0.1- 840304 413 (2.4- 0.6-) 891211 675 0.8+ 0.2- 970204 360 0.2+ 0.2+ 840307 413 0.8- 0.2+ 891211 675 0.5+ 0.3- 970204 360 0.3+ 0.1+ 840310 675 0.2+ 0.1- 891212 675 0.8+ 0.5+ 970220 327 1.3- 0.6+ 840311 675 0.3+ 0.4- 891212 675 0.8+ 0.3+ 970220 327 0.9- 0.5+ 840311 675 0.4+ 0.1+ 891212 675 1.0+ 0.2+ 970220 327 (2.5- 1.9+) 840311 675 0.5+ 0.1- 891212 675 1.5+ 0.4+ 970223 118 0.5- 0.2- 840311 372 1.5+ 0.8- 1995/ 970223 118 0.4- 0.5- 840312 801 (1.5+ 16.0+) 951021 691 0.1+ 0.3- 970301 360 0.0 0.0 840312 801 (0.6+ 3.2+) 951021 691 0.4- 0.6- 970301 360 0.1- 0.0 840312 675 0.5- 0.9+ 951021 691 0.2- 0.8- 970305 118 0.9- 0.7+ 840312 675 0.4- 0.6+ 951024 691 0.5- 0.6- 970305 118 0.6- 0.7+ 840321 675 0.1- 1.9- 951024 691 0.1- 0.5- 970311 360 0.4+ 0.6+ 840322 675 0.6- 1.9- 951024 691 0.7- 0.7- 970311 360 0.2+ 0.5+ 840322 046 1.0- 0.8- 951026 709 1.0- 0.4- 970403 118 0.8- 0.5+ 840323 046 1.1- 1.6+ 951026 709 0.1- 0.2+ 970403 118 0.8- 0.6+ 840326 372 (6.1- 8.5+) 951026 709 0.1- 0.4- 970407 360 0.3+ 0.1- 840326 323 (3.9- 5.9+) 951026 709 0.5+ 0.2- 970407 360 0.2+ 0.1+ 840326 552 (1.1+ 6.8-) 951026 709 0.3+ 0.5- 970410 897 1.0- 0.6+ 840326 552 (2.3+ 2.4-) 951026 709 0.1+ 0.2- 970410 897 0.1+ 0.5+ 840327 801 0.8- 1.3+ 951026 709 0.2- 0.6- 970413 620 0.6- 0.2- 840327 552 (2.7- 2.1-) 951026 709 1.0+ 0.2- 970413 620 0.6- 0.1+ 840327 552 (4.6- 4.9-) 951026 709 0.7- 0.1+ 970413 620 0.1+ 0.6+ 840328 381 0.1- 1.3+ 951026 709 1.0- 0.1- 970415 691 0.1+ 0.6- 840329 657 (6.9- 1.2+) 951027 693 0.1- 0.4+ 970415 691 0.3+ 0.6- 840329 323 1.4+ 0.2- 951027 693 0.7- 0.7+ 970415 691 0.3+ 0.5- 840330 657 (2.9+ 2.9-) 951027 693 0.2+ 1.1+ 970424 118 0.8+ 0.7- 840331 657 (5.7- 0.6-) 951222 691 0.2+ 0.0 970424 118 0.8+ 0.3- 840331 056 (5.7- 4.2-) 951222 691 0.2+ 0.0 970424 046 0.9+ 0.2- 840401 056 1.2- 0.7- 951222 691 0.2+ 0.4+ 970424 046 0.8+ 0.6- 840402 657 (0.9+ 2.1+) 951228 691 0.5+ 0.2- 970424 046 1.0+ 0.4- 840403 323 1.2- 0.8- 951228 691 0.1- 0.3- 970425 118 0.7+ 0.0 840403 114 0.4+ 0.4+ 951228 691 0.6- 0.2- 970425 118 0.9+ 0.3- 840404 801 (9.8+ 7.7+) 1996/ 970425 118 0.7+ 0.4- 840404 688 1.0+ 1.4- 961113 360 0.3- 0.3+ 970425 118 1.0+ 0.7- 840404 688 (1.4- 2.1-) 961113 360 0.1- 0.1- 970425 118 1.1+ 1.1- 840404 114 (3.8+ 0.9-) 961113 360 0.5- 0.1- 970425 352 1.9+ 0.5- 840405 707 0.5+ 0.8- 961213 867 0.5- 0.6+ 970425 352 1.1+ 0.6- 840405 323 0.4- 0.2- 961213 867 0.2- 0.3+ 970428 360 0.6+ 0.5- 840405 046 (0.7- 4.0-) 961213 867 0.4- 0.5+ 970428 360 0.7+ 0.4- 840405 046 (1.6- 2.3-) 961218 691 1.6- 0.8+ 970522 954 0.1- 0.6+ 840408 675 0.8- 1.2- 961218 691 1.9- 0.8+ 970522 954 0.2+ 0.3+ 840409 323 0.6- 1.5- 961218 691 (2.1- 0.7+) 970522 954(13.9- 15.6+) 840419 657 (1.6+ 3.9-) 961221 402 0.6- 0.2+ 970526 360 0.5+ 0.5+ 840419 046 1.3- 1.6- 961221 402 0.8- 0.3+ 970526 360 0.9+ 0.4+ 840419 046 1.0- 0.8- 961221 372 0.8- 1.6+ 970601 691 0.9+ 0.2+ 840421 675 0.5- 0.3- 1997/ 970601 691 0.6+ 0.2+ 840422 046 (0.9- 2.0-) 970110 355 0.8- 0.1+ 970703 360 0.8+ 0.2- 840424 046 (0.5+ 3.4-) 970110 355 0.1- 0.9+ 970703 360 0.6+ 0.0 840424 046 1.6+ 1.3+ 970113 897 1.6- 0.2+ 970705 691 0.5+ 0.3- 840425 046 0.9+ 0.5+ 970113 897 1.2- 0.4- 970705 691 0.6+ 0.5- 840425 046 0.4+ 1.5+ 970113 900 1.6- 0.8+ 970723 360 0.8+ 0.4+ 840426 323 0.6+ 0.0 970113 900 1.4- 0.5+ 970723 360 0.2+ 1.0+ 840429 801 (2.3+ 1.8+) 970118 360 0.2+ 0.3- 970723 360 0.6- 0.4+ 840507 801 1.4- 0.4+ 970118 360 0.6+ 0.5- 1989/ 970120 402 0.5+ 0.3- ( ) -------- Rejected Obs.
Director, Computing Section Syuichi Nakano 1999 Nov. 4