Nakano Note (Nakano wa Kangaeru noda) NK 2699 299P/Catalina-PANSTARRS
The following improved orbital elements, by S. Nakano, are from 155 observations 1987 to 2014. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.59 arc second. The pre-discovery observations in 1987 found by P. Sicoli which residuals were -6" for R. A. and +1" for Decl. from a linked orbit (2005- 2014) in NK 2656R (= HICQ 2014). See a previous orbit in NK 2656. Epoch = 2015 Feb. 27.0 TT T = 2015 Feb. 23.27959 +/- 0.00076 (m.e.) TT Peri. = 323.51054 +/- 0.00024 Node = 271.68050 +/- 0.00024 (2000.0) Inc. = 10.47981 +/- 0.00001 q = 3.1395427 +/- 0.0000024 AU e = 0.2822002 +/- 0.0000006 a = 4.3738415 +/- 0.0000011 AU n' = 0.10774807 +/- 0.00000004 P = 9.147 +/- 0.0000034 years T = 1988 Feb. 9.99683 TT Epoch = 1988 Feb. 9.0 TT Peri. = 319.38347 e = 0.2941351 Node = 274.64436 (2000.0) a = 4.2826226 AU Inc. = 10.49073 n'= 0.11120885 q = 3.0229532 AU P = 8.863 years [ T = 1996 Dec. 10.26337 TT Epoch = 1996 Dec. 23.0 TT Peri. = 319.38572 e = 0.2957506 Node = 274.60049 (2000.0) a = 4.2651504 AU Inc. = 10.50687 n'= 0.11189290 q = 3.0037296 AU P = 8.808 years ] T = 2006 Jan. 2.03222 TT Epoch = 2005 Dec. 16.0 TT Peri. = 323.53601 e = 0.2826039 Node = 271.67529 (2000.0) a = 4.3830626 AU Inc. = 10.46795 n'= 0.10740823 q = 3.1443919 AU P = 9.176 years The predicted orbit for the 2024 return is as follows: T = 2024 Apr. 30.33530 TT Epoch = 2024 May 10.0 TT Peri. = 323.68600 e = 0.2809412 Node = 271.58081 (2000.0) a = 4.3895859 AU Inc. = 10.46802 n'= 0.10716889 q = 3.1563705 AU P = 9.197 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 1987/ 140309 Q62 0.5- 0.5+ 140329 A71 0.0 0.1- 870131 260 1.0- 1.7- 140309 D90 1.0- 0.4+ 140329 A71 0.1- 0.6+ 870131 260 0.7- 1.3- 140309 D90 0.7+ 0.0 140329 A71 0.1- 0.4+ 2005/ 140309 D90 0.3+ 0.2- 140329 A71 0.4- 0.1+ 050311 699 1.1- 0.6+ 140309 B74 0.6- 0.6- 140329 A71 0.1- 0.2- 050311 699 0.1- 0.3- 140309 585 0.4+ 0.2- 140330 H45 0.1- 0.4+ 050311 699 0.9- 1.4+ 140309 585 0.2+ 0.1+ 140330 H45 0.2+ 0.3+ 050311 699 0.2- 0.5+ 140309 585 0.3+ 0.8- 140330 H45 0.1- 0.2- 050317 704 (1.2+ 2.2+) 140309 B74 0.4- 0.3- 140330 H45 0.4- 0.2- 050317 704 0.3- 0.1+ 140309 585 0.7+ 0.0 140330 H45 0.0 0.0 050317 704 (2.2+ 0.3+) 140309 585 0.4+ 1.0- 140330 H45 0.1+ 0.2- 050317 704 0.4+ 0.2+ 140309 585 0.5+ 0.1+ 140331 W96 0.2- 0.0 050711 E12 1.7+ 1.8- 140309 585 0.2+ 0.3+ 140331 W96 0.2+ 0.2+ 050711 E12 1.1+ 1.5- 140309 B74 0.9- 0.4+ 140331 W96 0.6- 0.2+ 050711 E12 0.7+ 0.5- 140309 246 0.2- 0.5+ 140331 850 0.0 0.5+ 2013/ 140309 246 0.1- 0.1+ 140331 850 0.1+ 0.2+ 130121 F51 0.0 0.2+ 140309 246 0.6- 0.6+ 140331 850 0.0 0.2+ 131204 F51 0.3+ 0.0 140309 246 0.1+ 0.9- 140331 372 0.1+ 0.5+ 131204 F51 0.3+ 0.1- 140309 246 0.1+ 0.4+ 140331 372 0.3+ 0.6+ 131204 F51 0.2+ 0.0 140309 246 0.3- 0.3+ 140401 372 0.8- 0.0 131204 F51 0.2+ 0.1- 140309 246 0.1+ 0.1+ 140401 372 0.4- 0.0 2014/ 140309 246 0.3- 0.2- 140404 W96 0.1+ 0.5- 140117 F51 0.3- 0.5- 140310 W96 1.0- 0.3+ 140404 W96 0.2+ 0.9- 140117 F51 0.2- 0.4- 140310 W96 0.4- 0.4- 140404 W96 0.7+ 0.3- 140213 F51 0.1+ 0.2- 140310 W96 0.1+ 0.2- 140404 372 0.5- 0.1- 140213 F51 0.1+ 0.2- 140310 349 0.3- 0.2+ 140404 372 0.1- 0.4+ 140221 F51 0.1+ 0.2- 140310 349 0.5- 0.2- 140405 D90 0.4+ 0.1- 140227 703 1.2- 1.4+ 140320 D90 0.5+ 0.3+ 140405 D90 0.3+ 0.0 140227 703 1.0- 0.5+ 140320 D90 0.1- 0.4+ 140405 D90 0.3+ 0.1+ 140227 703 1.8- 0.5+ 140320 D90 0.1- 0.1- 140406 349 0.4+ 0.4- 140227 703 0.6- 1.0+ 140320 215 0.3- 0.3+ 140406 349 0.2+ 0.8- 140227 F51 0.1- 0.2- 140320 215 0.4- 0.4+ 140406 130 0.9+ 0.0 140227 F51 0.1+ 0.1- 140320 215 0.4- 0.5+ 140406 130 1.4+ 0.2- 140306 703 1.5- 0.9+ 140321 D88 0.4- 0.5+ 140407 703 0.3- 0.2- 140306 703 1.3- 0.8+ 140321 D88 0.4+ 1.4+ 140407 703 0.7- 0.9+ 140306 703 1.6- 0.2- 140323 349 0.6- 1.3+ 140407 703 0.0 0.0 140306 703 0.7- 1.1+ 140323 349 0.2- 0.7+ 140407 703 0.9- 1.4+ 140307 568 0.1- 0.0 140327 850 0.2+ 0.3- 140421 291 0.6+ 0.3- 140308 958 0.6- 0.7+ 140327 850 (0.5+ 2.9+) 140421 291 0.7+ 0.1- 140308 958 0.8- 0.6+ 140327 850 0.3+ 0.2- 140421 291 0.6+ 0.2- 140308 958 0.7- 0.4+ 140327 850 0.2+ 0.0 140423 D95 0.8+ 0.8+ 140308 203 0.5- 1.1+ 140327 850 0.1- 0.3+ 140423 D95 0.1+ 0.4- 140308 203 0.2+ 0.0 140329 D90 0.4- 0.3+ 140423 D95 0.6- 0.3- 140309 I89 0.1- 0.3- 140329 D90 0.6+ 0.1- 140424 E07 0.6+ 0.4- 140309 I89 0.1- 0.0 140329 D90 0.7+ 0.0 140424 E07 0.7+ 0.4- 140309 I89 0.6- 0.7+ 140329 246 0.5+ 0.2- 140429 D90 1.6+ 0.9- 140309 958 0.9- 0.5+ 140329 246 0.9+ 0.8+ 140429 D90 1.2+ 0.5- 140309 958 0.4- 0.5+ 140329 246 0.9+ 0.3+ 140429 D90 0.6+ 0.4- 140309 958 1.0- 0.2+ 140329 246 0.8+ 0.8+ 140506 D90 0.4+ 0.5- 140309 I47 0.3+ 0.4+ 140329 246 0.3+ 0.8+ 140506 D90 1.0+ 0.7- 140309 I47 0.2+ 0.3+ 140329 246 0.1+ 0.8+ 140506 D90 1.0+ 0.9- 140309 I47 0.2+ 0.6- 140329 246 0.7+ 0.5+ 140520 D90 0.9+ 0.4- 140309 Q62 0.6- 0.3+ 140329 246 0.1+ 0.5+ 140520 D90 1.2+ 0.7- 140309 Q62 0.5- 0.4+ 140329 246 0.1+ 0.6+ 140520 D90 0.9+ 0.8- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2014 May 28