Nakano Note (Nakano wa Kangaeru noda) NK 2982 P/2015 D5 (Kowalski)
The following improved orbital elements, by S. Nakano, are from 105 observations 2015 Feb. 27 to June 12. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.50 arc second. Epoch = 2014 Apr. 13.0 TT T = 2014 Apr. 19.48337 +/- 0.17087 (m.e.) TT Peri. = 40.07623 +/- 0.02769 Node = 74.98168 +/- 0.00262 (2000.0) Inc. = 20.49658 +/- 0.00011 q = 4.5794472 +/- 0.0005774 AU e = 0.5036666 +/- 0.0001154 a = 9.2265539 +/- 0.0002644 AU n' = 0.03516777 +/- 0.00000151 P = 28.026 +/- 0.0012049 years (+/- 0.44 day) The predicted orbit for the 2041 return is as follows: T = 2041 Jan. 16.74020 TT Epoch = 2041 Jan. 1.0 TT Peri. = 39.92987 e = 0.4901054 Node = 74.03383 (2000.0) a = 8.9371853 AU Inc. = 20.52588 n'= 0.03688951 q = 4.5570230 AU P = 26.718 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2015/ 150310 I52 0.2- 0.2- 150325 V08 0.6+ 1.6+ 150227 G96 0.2- 0.1- 150310 I52 0.3+ 0.4- 150325 V08 0.4- 0.3+ 150227 G96 0.3+ 0.2- 150310 G96 0.1- 0.3- 150325 V08 0.1+ 0.1+ 150227 G96 0.2- 0.5- 150310 G96 0.5- 0.5- 150326 B74 1.8- 0.9+ 150227 G96 0.4+ 0.1- 150310 G96 0.2- 0.4- 150326 B74 1.8- 0.5+ 150227 G96 0.0 0.1- 150310 G96 0.1+ 0.0 150326 B74 (2.5- 0.0 ) 150227 G96 0.6- 0.3- 150310 G96 0.5- 0.4- 150328 900 0.6+ 0.3- 150227 G96 0.1- 0.1+ 150310 G96 0.7- 0.3- 150328 900 0.8- 0.7+ 150227 G96 0.7- 0.4- 150310 G96 0.0 0.3- 150411 K25 0.3- 0.4- 150227 C23 (2.3+ 0.9-) 150310 G96 0.5+ 0.3- 150411 K25 0.5- 0.3- 150227 C23 (2.9+ 1.0-) 150316 G96 0.6- 0.7- 150412 A71 0.4- 1.1- 150227 595 0.4- 0.3+ 150316 G96 0.9- 0.5- 150412 A71 0.1+ 1.1- 150228 595 0.6- 0.5- 150316 G96 0.5- 0.3- 150412 213 0.1- 0.4- 150228 203 0.1+ 0.3- 150316 G96 0.6- 0.6- 150412 213 0.3- 1.0- 150301 203 0.3- 0.4- 150316 461 0.9+ 0.3+ 150412 213 0.4- 0.9- 150301 203 0.6- 0.4+ 150316 461 0.5+ 0.4+ 150413 K25 0.6- 1.2- 150301 H06 0.6+ 0.6+ 150316 461 0.2+ 0.2+ 150413 K25 0.5- 0.1- 150301 H06 0.3+ 0.9+ 150316 461 0.3+ 0.3+ 150414 461 0.1+ 0.2- 150301 711 0.6+ 0.4+ 150316 095 0.1+ 0.3- 150414 461 0.1- 0.1+ 150301 711 0.6+ 0.2+ 150316 095 0.3+ 0.1- 150414 A77 1.3+ 0.7- 150301 711 0.7+ 0.7+ 150316 095 0.6+ 0.2+ 150414 A77 0.5+ 0.4+ 150309 G96 0.0 0.2+ 150317 585 0.2+ 0.1- 150420 F51 0.2- 0.1+ 150309 G96 0.3- 0.4- 150317 585 0.1+ 0.2- 150420 F51 0.2- 0.2- 150309 G96 0.0 0.2- 150317 585 0.3+ 0.0 150420 F51 0.1- 0.1+ 150309 G96 0.5- 0.5- 150317 585 0.1- 0.0 150420 F51 0.1+ 0.1- 150309 G96 0.1+ 0.1- 150317 585 0.2+ 0.3- 150420 130 1.3- 0.2- 150309 G96 0.8- 0.8- 150317 585 0.1- 0.3- 150420 130 0.1+ 1.0- 150309 G96 0.2- 0.2- 150317 585 0.1- 0.3- 150421 A77 0.7- 0.2- 150309 L04 0.5- 0.1- 150317 585 0.0 0.4- 150421 A77 0.2+ 0.2- 150309 118 0.5- 0.0 150317 585 0.0 0.3- 150512 A77 0.7+ 0.4+ 150309 118 0.6- 0.2- 150317 H45 0.7+ 0.2- 150512 A77 0.1+ 0.3+ 150309 118 0.6- 0.1- 150317 H45 1.1+ 0.2- 150517 A77 0.2- 0.2- 150309 L04 0.7- 0.3+ 150317 H45 0.0 0.0 150517 A77 0.0 0.0 150309 215 0.6- 0.5- 150324 F51 0.3+ 0.3+ 150612 867 0.8+ 0.6+ 150309 215 0.8- 0.3+ 150324 F51 0.3+ 0.3+ 150612 867 0.0 0.8+ 150309 215 0.4- 0.4+ 150324 F51 0.5+ 0.2+ 150310 I52 0.1+ 0.3- 150324 F51 0.2+ 0.5+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2015 July 30