OAA computing section circular NK 708 25D/Neujmin 2
The following improved orbital elements, by S. Nakano, are from 108 observations 1916 to 1927. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 2.09 arc seconds. Epoch = 1926 Dec. 31.0 TT T = 1927 Jan. 16.23017 +/- 0.00105 (m.e.) TT Peri. = 193.71289 +/- 0.00085 Node = 328.71633 +/- 0.00024 (2000.0) Inc. = 10.63842 +/- 0.00010 q = 1.3381903 +/- 0.0000015 AU e = 0.5668328 +/- 0.0000005 a = 3.0893155 +/- 0.0000016 AU n' = 0.18151423 +/- 0.00000014 P = 5.430 +/- 0.0000042 years T = 1916 Mar. 11.81417 TT Epoch = 1916 Feb. 27.0 TT Peri. = 193.75786 e = 0.5664621 Node = 328.74262 (2000.0) a = 3.0904636 AU Inc. = 10.63816 n'= 0.18141310 q = 1.3398331 AU P = 5.433 years The predicted orbit for the 2003 return is as follows: T = 2003 May 26.59772 TT Epoch = 2003 June 10.0 TT Peri. = 214.80676 e = 0.5872996 Node = 307.85056 (2000.0) a = 3.0717093 AU Inc. = 5.36888 n'= 0.18307705 q = 1.2676955 AU P = 5.384 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 1916/ 160330 804 (5.1- 0.5-) 160428 536 1.1- 0.9- 160224 094 2.1+ 3.5- 160330 804 4.6- 0.5+ 160430 536 0.8- 0.8+ 160227 094 0.6+ 1.3+ 160330 536 0.1+ 3.1- 160430 536 0.3+ 0.9+ 160228 094 2.2+ 1.2+ 160330 536 0.2- 2.2- 160501 536 0.2- 0.1- 160301 754 2.5+ 3.5+ 160331 804 3.9- 0.8+ 160501 536 1.4- 1.6+ 160303 804 4.2+ 0.9+ 160331 804 3.7- 0.8+ 160504 094 1.8+ 2.3- 160304 804 3.8- 0.3- 160331 804 1.6- 0.9- 160504 536 0.7+ 0.6+ 160304 804 3.6- 0.3- 160331 536 0.0 0.9- 160504 008 3.8+ 1.5+ 160304 754 3.6+ 0.1+ 160331 536 4.2+ 1.5- 160504 008 2.9+ 0.5+ 160304 094 0.0 1.2+ 160401 822 1.6- 0.0 160505 536 0.7+ 2.0- 160305 804 (6.3- 4.8+) 160401 804 4.8- 1.0- 160505 008 3.9+ 0.5- 160305 804 (6.3- 4.8+) 160401 804 (5.3- 6.9-) 160505 008 3.8+ 0.2- 160305 754 (1.1+ 5.7+) 160401 804 (4.6- 8.2-) 160506 787 (8.4+ 0.5+) 160305 787 0.9+ 1.5+ 160401 787 0.2+ 0.3- 160507 536 4.1- 0.4+ 160307 804 (5.4- 0.0 ) 160401 536 0.7+ 2.9- 160519 536 2.7+ 3.3+ 160308 804 (3.0+ 8.0+) 160401 536 0.3- 4.3- 160520 008 0.1+ 0.2- 160308 662 1.3+ 0.7- 160402 822 0.6- 1.4- 160520 008 1.2+ 0.0 160309 822 0.7+ 4.3+ 160402 804 (0.3+ 5.7-) 160520 536 (1.7- 15.5-)X 160309 754 2.1+ 4.6- 160402 804 (2.4- 6.5-) 160522 094 (5.3+ 0.2-) 160309 804 1.8+ 2.1- 160402 662 2.7+ 0.5- 160523 008 2.2+ 1.0- 160309 804 3.2+ 1.6- 160402 536 0.8+ 2.7+ 160523 008 4.3+ 0.3- 160309 094 1.3- 1.8+ 160402 536 0.6- 0.3+ 160526 078 3.0- 1.6+ Y 160310 804 2.1- 3.3+ 160403 804 3.6+ 1.1+ 160526 008 4.0+ 0.4- 160312 662 1.8- 1.2+ 160403 804 1.8- 3.8- 160526 008 1.8+ 0.1- 160321 008 (2.0- 5.5+) 160403 804 1.7- 3.8- 160527 078 1.9- 4.2+ Y 160321 008 (1.8- 5.4+) 160403 754 0.0 0.1+ 160527 094 0.4- 1.8+ 160322 008 0.5- 0.2- 160403 536 1.6- 1.9+ 160529 078 (9.4+ 1.3+)Y 160322 008 0.4- 1.4- 160403 536 0.4- 0.7+ 160530 078 (5.7- 0.1-)X 160322 008 0.9- 3.0+ 160404 536 0.7- 1.0+ 160602 078(76.2+ 6.1-)Y 160322 008 0.7- 2.9+ 160404 536 0.5- 1.4+ 160602 008 (6.1+ 0.3-) 160323 754 1.7- 3.6- 160406 536 1.9- 0.5- 160603 078 4.1- 1.1+ Y 160323 008 1.7+ 3.7+ 160406 536 0.2+ 1.4+ 160603 078 3.7- 1.0+ 160323 008 1.7+ 3.8+ 160407 822 (0.8+ 5.3-) 160605 094 (5.9- 1.2+) 160324 531 (8.7- 22.2+) 160407 787 4.4+ 2.3- 160605 008 1.5- 1.2+ 160326 822 1.8+ 0.9- 160408 536 1.7+ 0.5- 160605 008 0.9- 0.9+ 160326 008 1.5- 1.1- 160408 536 0.1- 1.6+ 1926/ 160326 008 1.8- 1.0- 160421 662 3.5- 0.4- 261108 094 (6.2- 9.9+) 160327 822 (5.5+ 4.5-) 160421 008 2.3+ 1.2- 261111 754 (7.1- 17.0+) 160327 008 1.0- 0.2- 160421 008 3.0+ 0.7- 1927/ 160327 008 0.5- 0.3- 160424 094 0.5- 1.3- 270114 754 2.4+ 1.3- 160327 536 0.0 2.8- 160425 754 1.8+ 4.6- 270130 754 0.1- 1.0- 160327 536 0.6- 2.6- 160425 536(12.2- 4.8+) 270202 754 3.0- 0.3- 160327 536 1.2+ 0.4- 160425 008 0.1+ 0.8- 270204 078 (9.6- 2.7-) 160329 804 1.6- 2.1+ 160425 008 0.5- 0.6- 270207 078 0.9+ 3.9+ 160329 804 1.6- 2.1+ 160425 536 0.2+ 0.7+ 270210 094(10.8- 4.5+) 160329 536 4.7- 1.7+ 160426 536 0.8- 4.0+ 270210 754 (8.6- 7.4+) 160329 536 2.7- 0.2- 160427 536 (6.0+ 2.6-) 160330 804 (7.2- 3.0+) 160428 536 0.3- 0.6- ( ) -------- Rejected Obs.
Director, Computing Section Syuichi Nakano 2000 May 12