Nakano Note (Nakano wa Kangaeru noda) NK 2433 P/2010 TO20 (LINEAR-Grauer)
The following improved orbital elements, by S. Nakano, are from 53 observations 2010 Oct. 1 to 2012 Nov. 15. 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 comet has passed 0.075 AU from Jupiter on 2009 Oct. 21 UT. The 2005 orbit was shown below. See an orbit in HICQ 2012. Epoch = 2012 Dec. 19.0 TT T = 2009 Jan. 19.16995 +/- 0.23746 (m.e.) TT Peri. = 266.00972 +/- 0.02060 Node = 44.03383 +/- 0.00068 (2000.0) Inc. = 2.52218 +/- 0.00007 q = 5.3119404 +/- 0.0001352 AU e = 0.0700220 +/- 0.0000082 a = 5.7118991 +/- 0.0000269 AU n' = 0.07219935 +/- 0.00000051 P = 13.651 +/- 0.0000966 years T = 2005 Jan. 15.36233 TT Epoch = 2005 Jan. 30.0 TT Peri. = 353.87041 e = 0.0950202 Node = 200.30990 (2000.0) a = 5.9741100 AU Inc. = 1.24874 n'= 0.06749852 q = 5.4064486 AU P = 14.602 years The predicted orbit for the 2022 return is as follows: T = 2022 Nov. 29.68730 TT Epoch = 2022 Dec. 7.0 TT Peri. = 267.58933 e = 0.0556838 Node = 43.28334 (2000.0) a = 5.8332785 AU Inc. = 2.47872 n'= 0.06995762 q = 5.5084596 AU P = 14.089 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2010/ 111019 G96 0.6+ 0.2+ 111021 215 (2.6- 0.4+) 101001 704 0.6- 0.6+ 111019 G96 0.1+ 0.2+ 111021 215 (2.5- 0.0 ) 101001 704 0.4- 0.4- 111019 G96 0.1+ 0.2- 111026 H06 0.6- 0.0 101001 704 0.4+ 1.4- 111019 G96 1.1- 0.3- 111026 H06 0.5- 0.4- 101001 704 0.9+ 0.1- 111019 G96 0.5+ 0.4+ 111026 H06 0.9- 0.6- 101007 704 0.6+ 0.1+ 111019 G96 0.9- 0.1- 111030 204 0.5+ 0.3+ 101007 704 0.6+ 0.6+ 111019 G96 1.9- 0.0 111030 204 1.7+ 0.7+ 101007 704 0.4- 0.7+ 111019 G96 0.8- 0.2- 111030 G96 0.4+ 0.1- 101007 704 0.2+ 0.1+ 111019 G96 0.5+ 0.2+ 111030 G96 0.9- 0.5- 101007 704 0.1+ 0.6+ 111019 G96 0.1- 0.5+ 111030 G96 0.5- 0.3+ 101009 595 0.6- 0.3- 111019 E10 0.9+ 0.1- 111030 G96 0.2- 0.4- 101009 595 0.3- 0.0 111019 E10 1.3+ 0.3- 111226 B18 0.4+ 0.0 101010 595 0.2- 0.2+ 111019 E10 1.3+ 0.2- 111226 B18 0.2- 0.2- 101010 595 0.0 0.0 111020 G96 0.8- 0.4- 111226 B18 0.3+ 0.9- 101011 704 0.1+ 0.3+ 111020 G96 0.4- 0.1- 2012/ 101011 704 0.9- 0.9- 111020 G96 0.6- 0.2+ 121115 C32 0.0 0.3+ 101011 704 0.1+ 0.5+ 111020 G96 0.1- 0.0 121115 C32 0.4- 0.3+ 101011 704 (2.1- 0.9-) 111020 F65 1.2+ 0.4+ 121115 C32 0.2+ 0.3+ 2011/ 111020 F65 0.7+ 0.4+ 121117 C32 (4.9- 0.2+) 111019 G96 0.5- 0.5- 111020 F65 1.0+ 0.9+ 121117 C32 (3.3- 0.5-) 111019 G96 0.0 0.5- 111021 215 (2.1- 3.7+) ( ) -------- Rejected Obs.
Associate of Central Bureau for Astronomical Telegrams Syuichi Nakano 2013 Apr. 1