Nakano Note (Nakano wa Kangaeru noda) NK 2974 P/2014 W9 (PANSTARRS)

The following improved orbital elements, by S. Nakano, are from 115 observations 2014 Oct. 25 to 2015 June 8. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.42 arc second. See the previous orbits in NK 2833 and NK 2911. Epoch = 2015 Feb. 27.0 TT T = 2015 Feb. 15.70614 +/- 0.00006 (m.e.) TT Peri. = 167.76998 +/- 0.00004 Node = 21.28831 +/- 0.00003 (2000.0) Inc. = 10.63053 +/- 0.00001 q = 1.5874543 +/- 0.0000010 AU e = 0.8578155 +/- 0.0000039 a = 11.1647530 +/- 0.0000276 AU n' = 0.02641985 +/- 0.00000010 P = 37.306 +/- 0.0001385 years (+/- 0.05 day) The predicted orbit for the 2052 return is as follows: T = 2052 May 7.88034 TT Epoch = 2052 May 23.0 TT Peri. = 167.59829 e = 0.8586099 Node = 21.30489 (2000.0) a = 11.2575450 AU Inc. = 10.62595 n'= 0.02609387 q = 1.5917058 AU P = 37.772 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2014/ 141230 703 0.3- 1.2+ 150220 D95 0.3- 0.8+ 141025 G96 0.1+ 0.2- 2015/ 150220 D95 0.4+ 1.0+ 141025 G96 0.3- 0.3+ 150108 F51 0.0 0.2- 150221 215 0.8+ 0.3+ 141025 G96 0.2- 0.4+ 150108 F51 0.1+ 0.1- 150221 215 0.7+ 0.5+ 141025 G96 1.0- 0.5+ 150108 F51 0.0 0.1- 150221 215 0.4+ 1.6+ 141122 F51 0.0 0.1- 150108 F51 0.1+ 0.1- 150224 W88 0.2- 0.0 141122 F51 0.0 0.1- 150120 H06 0.3+ 0.7+ 150224 W88 0.2+ 0.1+ 141122 F51 0.0 0.1- 150120 H06 (0.9+ 2.0+) 150224 W88 0.2+ 0.1+ 141123 W96 0.9+ 0.7- 150123 C51 0.1- 0.2+ 150224 W88 0.1+ 0.4+ 141123 W96 0.9- 0.3+ 150123 C51 0.1+ 0.5+ 150225 F51 0.1+ 0.0 141123 291 0.7+ 1.5+ 150123 C51 0.3- 0.0 150225 F51 0.1+ 0.1- 141123 291 0.3- 0.8+ 150123 C51 0.1+ 0.5+ 150225 F51 0.0 0.1- 141123 291 0.2- 0.3+ 150123 C51 0.7+ 0.8+ 150225 F51 0.0 0.1- 141123 H06 (2.8+ 3.4+) 150123 C51 0.6- 0.4+ 150322 Q62 0.3+ 0.6+ 141123 H06 (3.1+ 3.3+) 150124 C51 0.4+ 0.5+ 150322 Q62 0.1- 0.5+ 141123 568 0.0 0.2- 150124 C51 0.5+ 0.8+ 150327 F51 0.0 0.3- 141123 568 0.1- 0.2- 150124 C51 0.2+ 0.4+ 150327 F51 0.0 0.3- 141123 568 0.2- 0.2- 150124 C51 0.1- 0.6+ 150327 F51 0.1+ 0.2- 141124 291 0.1+ 0.5+ 150124 C51 0.6+ 0.3- 150327 F51 0.0 0.2- 141124 291 0.0 0.2+ 150124 C51 0.2+ 0.5+ 150328 H06 0.3+ 0.7- 141124 291 0.5- 0.4+ 150124 C51 0.3+ 0.6+ 150328 H06 0.4- 1.8- 141125 568 0.1- 0.1- 150124 C51 0.4+ 0.2+ 150329 G45 1.1- 0.0 141125 568 0.1- 0.1- 150125 C51 0.1- 0.9+ 150329 G45 1.0- 0.7+ 141125 568 0.1- 0.2- 150125 C51 0.0 0.7+ 150329 G45 0.9- 0.8+ 141126 F51 0.1- 0.0 150128 F51 0.0 0.0 150329 G45 1.1- 0.5+ 141126 F51 0.1- 0.0 150128 F51 0.0 0.0 150329 G45 0.5+ 0.7+ 141126 F51 0.0 0.0 150128 F51 0.0 0.0 150329 G45 0.3- 0.6+ 141126 F51 0.1- 0.0 150128 F51 0.0 0.0 150401 W96 0.4- 0.6- 141130 F51 0.0 0.2- 150130 F51 0.1+ 0.0 150401 W96 1.6- 1.1+ 141130 F51 0.1- 0.1- 150130 F51 0.1+ 0.0 150412 Y00 1.1- 1.1+ 141130 F51 0.1- 0.2- 150130 F51 0.0 0.1- 150412 Y00 1.6- 0.3+ 141220 I89 1.0+ 0.6+ 150130 F51 0.0 0.1- 150412 Y00 1.3- 0.1- 141220 I89 0.5+ 0.5+ 150131 Q62 0.4+ 0.4+ 150415 W96 0.5- 0.8- 141220 I89 0.2+ 0.5+ 150131 Q62 0.4+ 0.2+ 150415 W96 1.0- 0.6- 141224 703 (0.2- 2.2+) 150131 Q62 0.5+ 0.1+ 150608 E85 0.0 0.0 141224 703 (0.1- 2.0+) 150214 H06 1.9- 1.3+ 150608 E85 0.2- 0.2- 141224 703 (2.9+ 1.9+) 150214 H06 (0.7+ 2.3+) 150608 E85 0.1- 0.4- 141226 I89 0.2+ 0.3+ 150214 703 0.0 0.7+ 150608 E85 0.5+ 0.5- 141226 I89 0.1+ 0.2+ 150214 703 (0.3- 3.0+) 150608 F51 0.0 0.0 141230 703 0.5+ 0.7+ 150214 703 1.6- 1.9+ 150608 F51 0.3+ 0.0 141230 703 0.5+ 1.1+ 150214 703 0.3+ 1.3+ 150608 F51 0.2+ 0.0 141230 703 0.2+ 0.8+ 150220 D95 1.9+ 0.4- ( ) -------- Rejected Obs.

Associate of the CBAT Syuichi Nakano 2015 July 30

Back to Nakano Note Page