Nakano Note (Nakano wa Kangaeru noda) NK 2634 P/2013 O2 (PANSTARRS)
The following improved orbital elements, by S. Nakano, are from 170 observations 2013 July 16 to 2014 Feb. 23. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.61 arc second. See the previous orbit in NK 2582. Epoch = 2013 Dec. 14.0 TT T = 2013 Dec. 16.37160 +/- 0.00174 (m.e.) TT Peri. = 213.74216 +/- 0.00068 Node = 207.67464 +/- 0.00005 (2000.0) Inc. = 13.30660 +/- 0.00004 q = 2.1459899 +/- 0.0000061 AU e = 0.4390375 +/- 0.0000034 a = 3.8255499 +/- 0.0000066 AU n' = 0.13172350 +/- 0.00000034 P = 7.482 +/- 0.0000195 years The predicted orbit for the 2021 return is as follows: T = 2021 May 22.68973 TT Epoch = 2021 May 26.0 TT Peri. = 214.29985 e = 0.4468178 Node = 207.14691 (2000.0) a = 3.7890685 AU Inc. = 13.31969 n'= 0.13363044 q = 2.0960453 AU P = 7.376 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2013/ 130913 G96 0.2+ 0.3- 131104 E07 1.0+ 0.5- 130716 F51 0.2+ 0.0 130913 G96 0.0 0.4- 131105 J24 0.5- 0.2- 130716 F51 0.2+ 0.1- 130913 G96 0.7- 0.1- 131105 J24 0.4+ 0.1+ 130716 F51 0.2+ 0.1- 130913 G96 (2.1- 0.1-) 131105 J24 0.8+ 0.0 130716 F51 0.2+ 0.2- 130927 900 0.9+ 0.2- 131108 W96 0.0 0.6- 130717 H21 1.1- 0.7+ 130927 900 1.5+ 0.9- 131108 W96 0.5+ 0.5- 130717 H21 1.1- 0.5+ 131001 691 0.3- 0.1+ 131108 D95 0.6+ 1.2+ 130717 H21 1.1- 0.2+ 131001 691 0.1+ 0.0 131108 D95 1.0+ 0.5+ 130717 H21 1.4- 0.4+ 131001 691 0.1- 0.2+ 131109 691 1.6- 1.8+ 130718 807 0.3+ 0.0 131001 691 0.6- 0.1+ 131109 691 (0.4+ 2.3+) 130718 807 0.3+ 0.4- 131001 691 0.9- 0.2- 131109 691 0.9- 0.6+ 130718 807 0.2- 0.1- 131001 691 0.2- 0.4+ 131109 G96 0.3- 0.3+ 130721 I89 1.0- 0.5+ 131005 691 1.2- 0.1+ 131109 G96 0.1+ 0.3+ 130721 I89 0.4- 0.5+ 131005 691 1.2- 0.3+ 131109 G96 0.2- 0.1+ 130721 I89 0.2- 0.8+ 131005 691 0.7- 0.5+ 131109 703 0.5- 0.4+ 130724 Q62 0.0 1.2- 131009 691 0.1+ 0.3- 131109 G96 0.1- 0.1+ 130724 Q62 0.1+ 0.5- 131009 691 0.3+ 0.1- 131109 703 (2.2- 1.5+) 130724 Q62 0.1- 0.1+ 131009 691 0.1- 0.1+ 131109 703 1.5- 1.1+ 130725 H21 0.1- 1.0+ 131010 958 (1.2+ 2.4-) 131109 703 0.2+ 0.2+ 130725 H21 0.3- 0.3+ 131010 958 0.3- 0.2- 131109 D90 0.2+ 0.4- 130725 H21 0.7- 0.5+ 131013 691 0.1- 0.4- 131109 D90 1.5+ 1.2- 130725 H21 0.1+ 0.2+ 131013 691 0.0 0.2- 131109 D90 0.6+ 1.7- 130731 W96 0.2- 0.5+ 131013 691 0.0 0.4- 131113 A24 0.2+ 0.0 130731 W96 0.8+ 0.1+ 131013 349 0.3- 0.1+ 131113 A24 1.0+ 0.1+ 130803 W96 (2.9+ 0.9+) 131013 349 1.1- 1.0+ 131118 585 0.5+ 0.1- 130803 W96 0.0 0.4+ 131014 C32 0.3+ 0.2+ 131118 585 0.3+ 0.1- 130806 H06 0.0 0.4+ 131014 C32 0.6+ 0.2+ 131118 585 0.2+ 0.2- 130806 H06 0.2+ 0.2+ 131014 C32 0.9+ 0.4+ 131118 585 0.5+ 0.4- 130810 W96 0.7+ 0.5+ 131015 A02 0.9+ 0.6- 131118 585 0.7+ 0.5- 130810 W96 1.1+ 0.0 131015 A02 (3.1- 0.9+) 131126 130 0.7- 0.8- 130814 C32 (2.6- 0.1+) 131023 691 0.2+ 0.0 131126 130 0.5- 1.2- 130814 C32 (2.1- 0.1+) 131023 691 0.6- 0.1- 131127 F51 0.1- 0.0 130814 C32 (2.3- 0.5+) 131023 691 0.5- 1.1+ 131127 F51 0.1- 0.3- 130831 349 1.6- 0.7- 131027 349 0.3- 0.8+ 131127 F51 0.0 0.2- 130831 349 1.1- 0.2- 131027 349 0.2+ 0.2+ 131127 F51 0.1- 0.2- 130901 703 0.8- 0.7+ 131027 D90 0.1+ 0.6+ 131128 K25 0.2+ 0.2+ 130901 703 1.0- 0.0 131027 D90 1.2- 1.6- 131128 K25 0.0 0.2- 130901 703 1.5- 1.0- 131027 D90 0.8+ 0.0 131129 213 0.2+ 0.4+ 130901 703 (2.9- 1.2+) 131028 G96 1.0+ 0.0 131129 213 1.0+ 0.6+ 130904 215 0.1- 0.2+ 131028 G96 0.4+ 0.2+ 131129 213 1.1+ 0.8+ 130904 215 0.0 0.1- 131028 G96 0.6+ 0.2+ 131201 349 0.4+ 0.0 130904 215 0.2+ 0.0 131031 461 0.7+ 0.7- 131201 349 0.9+ 0.4+ 130904 A24 0.2- 0.3+ 131031 461 0.8+ 0.8- 131201 K25 0.9- 0.5+ 130904 A24 0.4- 0.3+ 131031 461 0.5+ 0.3- 131201 K25 0.5- 0.0 130904 A24 0.0 0.3+ 131101 703 0.3+ 0.8- 131207 703 (0.7+ 3.6+) 130904 A24 0.3+ 0.2+ 131101 703 0.8- 0.4+ 131207 703 0.3+ 1.2+ 130904 A24 0.7+ 0.2+ 131101 703 0.9- 0.5+ 131207 703 0.8- 1.2+ 130905 C10 0.5+ 0.2+ 131101 703 1.0- 1.1+ 131207 703 0.3- 1.9+ 130905 C10 1.1- 0.2- 131101 703 0.6- 1.1+ 131222 D95 0.1+ 1.8+ 130905 A24 0.4+ 0.7+ 131101 703 1.6- 0.1- 131222 D95 0.6- 0.5+ 130905 A24 0.8- 1.0+ 131101 703 1.3- 0.2+ 131227 D90 0.1- 0.0 130905 561 0.6+ 0.3+ 131102 J24 1.6+ 0.6- 131227 D90 0.5+ 0.6+ 130905 561 0.5+ 0.6+ 131102 J24 0.1+ 0.2- 131227 D90 0.6+ 0.6+ 130905 561 0.9+ 0.3- 131102 J24 0.5+ 0.8+ 131227 130 0.4+ 0.5- 130905 561 0.8+ 0.5+ 131102 H45 0.7+ 0.8- 131227 130 0.8- 1.5- 130910 A71 0.3- 0.2+ 131102 H45 0.6+ 0.5- 2014/ 130910 A71 0.2+ 0.1- 131102 H45 0.0 1.4- 140126 Q62 0.7- 0.1+ 130912 G96 0.2+ 0.1- 131102 H45 0.4+ 1.4- 140126 Q62 0.5- 0.3+ 130912 G96 0.8- 0.0 131102 H45 0.1+ 0.9- 140223 215 0.3+ 0.8+ 130912 G96 0.0 0.6+ 131102 H45 0.1- 0.2- 140223 215 0.1- 0.9+ 130912 G96 0.6+ 0.2+ 131104 E07 0.4- 0.7- 140223 215 0.6+ 0.9+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2014 Mar. 3