Nakano Note (Nakano wa Kangaeru noda) NK 2656R P/Catalina-PANSTARRS (2014 D2 = 2005 EL284 = 5N55702)
The following improved orbital elements, by S. Nakano, are from 75 observations 2005 to 2014. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.62 arc second. Minor planet 2005 EL284 (and 5N55702) was identified from an orbit in NK 2656. Then the residuals was +0.03 deg off from the prediction with the delta-T correction = +0.13 day. See a based orbit in NK 2656. Epoch = 2015 Feb. 27.0 TT T = 2015 Feb. 23.28084 +/- 0.00113 (m.e.) TT Peri. = 323.50985 +/- 0.00063 Node = 271.68079 +/- 0.00029 (2000.0) Inc. = 10.47984 +/- 0.00002 q = 3.1395637 +/- 0.0000219 AU e = 0.2821955 +/- 0.0000050 a = 4.3738421 +/- 0.0000098 AU n' = 0.10774805 +/- 0.00000036 P = 9.147 +/- 0.0000309 years T = 2006 Jan. 2.03273 TT Epoch = 2005 Dec. 16.0 TT Peri. = 323.53533 e = 0.2825992 Node = 271.67558 (2000.0) a = 4.3830639 AU Inc. = 10.46798 n'= 0.10740818 q = 3.1444134 AU P = 9.176 years The predicted orbit for the 2024 return is as follows: T = 2024 Apr. 30.33724 TT Epoch = 2024 May 10.0 TT Peri. = 323.68531 e = 0.2809365 Node = 271.58110 (2000.0) a = 4.3895866 AU Inc. = 10.46805 n'= 0.10716887 q = 3.1563917 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(") 2005/ 140227 703 0.5- 1.0+ 140309 D90 0.4+ 0.2- 050311 699 1.4- 0.8+ 140227 F51 0.1+ 0.2- 140309 B74 0.5- 0.7- 050311 699 0.4- 0.1- 140227 F51 0.2+ 0.1- 140309 B74 0.2- 0.3- 050311 699 1.2- 1.5+ 140306 703 1.3- 0.9+ 140309 B74 0.8- 0.4+ 050311 699 0.5- 0.6+ 140306 703 1.2- 0.8+ 140309 246 0.1- 0.4+ 050317 704 (0.9+ 2.4+) 140306 703 1.5- 0.3- 140309 246 0.0 0.1+ 050317 704 0.5- 0.3+ 140306 703 0.6- 1.1+ 140309 246 0.5- 0.5+ 050317 704 1.9+ 0.5+ 140307 568 0.0 0.1- 140309 246 0.2+ 0.9- 050317 704 0.2+ 0.4+ 140308 958 0.5- 0.7+ 140309 246 0.2+ 0.4+ 050711 E12 1.7+ 1.7- 140308 958 0.7- 0.6+ 140309 246 0.2- 0.3+ 050711 E12 1.1+ 1.4- 140308 958 0.5- 0.4+ 140309 246 0.2+ 0.0 050711 E12 0.8+ 0.3- 140308 203 0.4- 1.1+ 140309 246 0.2- 0.2- 2013/ 140308 203 0.3+ 0.1- 140310 W96 0.8- 0.3+ 130121 F51 0.0 0.1+ 140309 I89 0.0 0.4- 140310 W96 0.3- 0.4- 131204 F51 0.3+ 0.1+ 140309 I89 0.0 0.0 140310 W96 0.3+ 0.2- 131204 F51 0.3+ 0.0 140309 I89 0.5- 0.6+ 140310 349 0.2- 0.2+ 131204 F51 0.2+ 0.0 140309 958 0.7- 0.5+ 140310 349 0.4- 0.2- 131204 F51 0.2+ 0.0 140309 958 0.3- 0.4+ 140320 D90 0.6+ 0.3+ 2014/ 140309 958 0.9- 0.2+ 140320 D90 0.1+ 0.4+ 140117 F51 0.2- 0.5- 140309 I47 0.5+ 0.4+ 140320 D90 0.0 0.1- 140117 F51 0.1- 0.4- 140309 I47 0.3+ 0.3+ 140320 215 0.2- 0.3+ 140213 F51 0.3+ 0.2- 140309 I47 0.4+ 0.7- 140320 215 0.3- 0.4+ 140213 F51 0.3+ 0.2- 140309 Q62 0.5- 0.2+ 140320 215 0.3- 0.5+ 140221 F51 0.3+ 0.2- 140309 Q62 0.4- 0.3+ 140321 D88 0.3- 0.5+ 140227 703 1.1- 1.3+ 140309 Q62 0.3- 0.5+ 140321 D88 0.5+ 1.4+ 140227 703 0.9- 0.5+ 140309 D90 0.9- 0.4+ 140227 703 1.6- 0.5+ 140309 D90 0.9+ 0.1- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2014 Mar. 29