Nakano Note (Nakano wa Kangaeru noda) NK 5166 P/Spacewatch-LINEAR (2004 DO 29 = 2023 V7)
The following improved orbital elements, by S. Nakano, are from 103 observations 2004 to 2024. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.56 arc second. Residuals for recovery observations were +10'.8 for Right Ascension and -1'.9 for Declination from the prediction in NK 1268 by T. Kobayashi, Oizumi, Japan, with the delta-T correction = -1.50 days. See the previous orbits in NK 1174, NK 1269 and CBET 5335 (same orbit). Epoch = 2024 June 19.0 TT T = 2024 June 1.61319 +/- 0.00998 (m.e.) TT Peri. = 40.39478 +/- 0.00141 Node = 147.37517 +/- 0.00011 (2000.0) Inc. = 14.52525 +/- 0.00009 q = 4.0774766 +/- 0.0000042 AU e = 0.4421841 +/- 0.0000005 a = 7.3097170 +/- 0.0000103 AU n' = 0.04987159 +/- 0.00000011 P = 19.763 +/- 0.0000419 years T = 2004 Oct. 9.28443 TT Epoch = 2004 Oct. 2.0 TT Peri. = 41.58759 e = 0.4495120 Node = 147.77741 (2000.0) a = 7.4421753 AU Inc. = 14.49558 n'= 0.04854609 q = 4.0968279 AU P = 20.303 years The predicted orbit for the 2044 return is as follows: T = 2044 Apr. 16.82113 TT Epoch = 2044 Apr. 15.0 TT Peri. = 40.94256 e = 0.4427919 Node = 147.36991 (2000.0) a = 7.3078207 AU Inc. = 14.52033 n'= 0.04989100 q = 4.0719770 AU P = 19.755 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2004/ 040316 568 0.5+ 0.6- 2005/ 040211 699 1.1- 0.4+ 040317 215 0.4+ 0.4- 050604 291 0.3- 0.1- 040211 699 0.4+ 0.9- 040317 204 0.1+ 0.0 050604 291 0.0 0.5+ 040211 699 (2.6- 0.3-) 040318 204 0.3+ 0.1+ 050604 291 0.6- 0.2+ 040211 699 0.2- 0.8+ 040318 372 0.2- 0.7- 050710 673 0.2+ 0.5+ 040217 691 0.1+ 0.1- 040318 360 0.3+ 0.1+ 050710 673 0.5+ 0.3- 040217 691 0.3- 0.0 040318 360 0.1+ 0.8- 050710 673 0.7+ 0.8- 040217 704 1.7- 1.3+ 040318 360 1.0- 0.5- 2023/ 040217 691 0.6- 0.2- 040319 J87 0.4- 0.2- 231111 J04 0.1+ 0.1- 040217 704 0.3+ 0.6+ 040319 J87 0.2- 0.4- 231111 J04 0.6- 0.5- 040217 704 0.3+ 1.2+ 040319 J87 1.2- 0.7- 231111 J04 0.4- 0.3- 040217 704 1.4+ 1.3+ 040319 644 0.4+ 0.0 231113 Z84 0.4- 0.1- 040218 608 0.3+ 0.6- 040319 644 0.6+ 0.1+ 231113 Z84 0.2- 0.1+ 040218 608 0.3+ 0.1- 040319 644 0.4+ 0.2+ 231113 W57 0.7- 0.9+ 040218 608 0.0 0.0 040319 704 1.7+ 0.1- 231121 F51 0.2+ 0.0 040223 704 0.2+ 0.7- 040319 704 1.1+ 0.5+ 231121 F51 0.3+ 0.2+ 040223 704 0.2- 0.7- 040319 704 1.0+ 0.1- 231121 F51 0.2+ 0.2- 040223 704 0.3- 0.4+ 040319 704 1.1+ 0.6+ 231121 F51 0.1+ 0.4- 040223 704 0.4- 0.1- 040319 213 0.4- 0.4+ 231125 F52 0.6+ 0.2- 040223 704 0.5- 0.2- 040320 360 0.4+ 0.2- 231125 F52 0.3+ 0.0 040223 608 0.1+ 0.3+ 040320 360 0.3+ 0.7- 231125 F52 0.6+ 0.0 040223 608 0.1+ 0.0 040320 360 0.0 0.0 231129 Z17 0.2+ 0.5+ 040223 608 0.5- 0.3+ 040320 J87 0.3- 0.2- 231129 Z17 0.0 0.1- 040225 704 1.1- 1.0- 040320 J87 0.2+ 0.8- 231225 Z84 0.1+ 0.0 040225 704 (1.1+ 2.5+) 040320 J87 0.1- 0.5- 231225 Z84 0.0 0.0 040225 704 1.1- 0.7+ 040322 704 0.8+ 0.1- 231225 Z84 0.1+ 0.2+ 040225 704 1.0- 0.3+ 040322 704 1.9+ 0.7+ 2024/ 040225 704 1.0- 0.1+ 040322 704 0.8- 0.2- 240108 Z84 0.1- 0.2+ 040226 704 (2.4- 0.6+) 040326 703 0.1- 0.3+ 240108 Z84 0.1- 0.0 040226 704 (2.4- 0.5+) 040326 703 0.2- 0.0 240108 Z84 0.4- 0.0 040226 704 0.5+ 0.7+ 040326 703 1.0- 0.1- 240108 Z84 0.1- 0.1+ 040226 704 0.6- 0.3+ 040326 703 0.2+ 0.2- 240117 G00 0.5+ 0.4- 040315 703 0.1- 0.7+ 040412 213 (1.3- 2.5-) 240117 G00 0.2+ 0.5- 040315 703 0.4+ 0.8+ 040412 213 1.2- 1.8- 240117 G00 0.2+ 0.3- 040315 703 0.9- 0.0 040414 215 0.7- 0.2+ 240119 Q62 0.2- 0.1- 040315 703 0.1- 0.5- 040420 360 0.7+ 0.4- 240119 Q62 0.3+ 0.5+ 040316 568 0.4+ 0.5- 040420 360 0.8+ 0.6- 040316 568 0.4+ 0.6- 040420 360 0.6+ 0.6- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2024 Jan. 23