Nakano Note (Nakano wa Kangaeru noda) NK 2615 C/2013 F2 (Catalina)
The following improved orbital elements, by S. Nakano, are from 122 observations 2012 Dec. 28 to 2014 Jan. 12. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.49 arc second. The comet has passed 6.50 AU from Uranus on 2004 Oct. 7 and will pass 3.44 AU from Jupiter on 2015 May 30 UT. Recent observations show the residuals of -7" off mainly in Declination from an updated orbit. See an orbit in HICQ 2013. Epoch = 2013 Apr. 18.0 TT T = 2013 Apr. 18.86511 +/- 0.01110 (m.e.) TT Peri. = 122.97888 +/- 0.00101 Node = 344.27061 +/- 0.00013 (2000.0) Inc. = 61.75030 +/- 0.00007 q = 6.2177979 +/- 0.0000142 AU e = 0.9992856 +/- 0.0000160 1/a = +0.0001149 +/- 0.0000026 1/AU origin = +0.000777 (Q= 7) future = +0.001316 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2012/ 130328 H21 0.1- 0.3+ 130414 A24 0.4+ 0.3+ 121228 F51 0.1+ 0.2+ 130328 711 0.1+ 0.1+ 130414 A24 0.5+ 0.5+ 121228 F51 0.0 0.0 130328 711 0.2- 0.3- 130414 A24 0.8+ 0.3+ 2013/ 130328 711 0.1+ 0.1- 130414 A24 0.2- 0.2+ 130126 F51 0.5+ 0.3- 130329 H21 0.3+ 0.2- 130414 A24 1.3+ 0.5+ 130319 F51 0.0 0.3- 130329 H21 0.1+ 0.2+ 130414 A24 0.2- 0.5+ 130319 F51 0.1- 0.3- 130329 H21 0.3+ 0.2- 130415 H45 0.6+ 0.3+ 130319 F51 0.2- 0.2- 130401 H45 0.0 0.3+ 130415 H45 0.3+ 0.4+ 130319 F51 0.2- 0.1- 130401 H45 0.1+ 0.1+ 130415 H45 0.2+ 0.5- 130324 703 0.5+ 0.8+ 130401 H45 0.5+ 0.2- 130415 H45 0.1+ 0.5- 130324 703 (0.2- 2.1+) 130401 H45 0.1- 0.6+ 130415 H45 0.0 0.1+ 130324 703 0.4+ 0.8+ 130401 H45 0.2- 0.5- 130415 H45 0.0 0.2+ 130324 703 0.3+ 0.4+ 130401 H45 0.2- 0.6- 130415 215 0.1+ 0.7+ 130324 703 0.3+ 0.3+ 130401 H45 0.0 0.1+ 130415 215 0.1+ 0.2+ 130324 703 0.4- 0.3+ 130401 H45 0.0 0.1- 130415 215 0.2+ 0.1- 130324 703 0.8- 1.3+ 130401 D95 0.8- 0.2- 130418 703 0.2+ 0.8+ 130324 703 0.0 0.0 130401 D95 0.2- 0.1- 130418 703 0.4+ 0.6+ 130324 703 1.1- 1.2+ 130402 C10 0.0 0.4+ 130418 703 (0.4- 2.1+) 130324 703 0.8- 0.5+ 130402 C10 0.3- 0.5+ 130429 H06 0.9+ 0.1+ 130324 H06 0.1- 0.4- 130402 C23 0.2- 0.1- 130429 H06 0.8+ 0.2+ 130324 H06 0.1- 0.3- 130402 C23 1.2- 0.0 130429 H06 0.7+ 0.4+ 130324 H06 0.3- 0.2- 130402 C10 0.1- 0.1+ 130429 H45 0.4- 0.4- 130324 I93 0.2- 0.8- 130402 C23 0.6- 1.2+ 130429 H45 0.2+ 0.4- 130324 I93 0.5+ 0.1- 130403 372 0.4- 1.0+ 130429 H45 0.1+ 0.1- 130324 I93 0.7- 0.8- 130403 372 0.5+ 0.4+ 130429 H45 0.4+ 0.9- 130325 711 0.1- 0.3+ 130403 372 0.2+ 1.4+ 130429 H45 0.5+ 0.6+ 130325 711 0.2- 0.4+ 130410 A24 (0.1- 3.4+) 130429 H45 0.7+ 0.7+ 130325 711 0.2- 0.0 130410 A24 0.3- 0.4+ 130501 212 0.8+ 0.0 130325 H06 0.3- 0.3- 130412 J24 0.2- 0.8- 130501 212 1.0+ 0.0 130325 H06 0.9- 0.0 130413 J24 0.2- 1.1- 130501 212 0.8+ 0.5- 130325 H06 0.9- 0.1+ 130413 H45 0.0 0.0 130529 C32 0.4- 1.0+ 130326 H01 0.2- 0.2- 130413 H45 0.1+ 0.9- 130529 C32 0.7- 1.1+ 130326 H01 0.7- 0.3+ 130413 H45 0.0 1.1- 130529 C32 1.0- 1.6+ 130326 H01 0.2- 0.1- 130413 H45 0.4- 0.1+ 131211 H06 0.2+ 0.0 130326 H01 0.3- 0.3+ 130413 H45 0.6- 0.3+ 131211 H06 0.0 0.0 130327 A13 (2.0- 1.1+) 130413 I57 0.6- 0.4- 131211 H06 0.1+ 0.2- 130327 A13 0.1+ 0.5- 130413 I57 0.6- 0.1- 131229 900 0.5+ 0.7- 130327 B86 0.1- 0.5- 130413 I57 0.0 0.1- 131229 900 (3.1+ 8.6-) 130327 B86 0.3+ 0.0 130413 A24 0.4- 0.1- 2014/ 130327 B86 0.4+ 0.3- 130413 A24 0.4+ 0.6- 140112 K51 0.2- 0.0 130327 B86 0.9+ 0.3- 130413 A24 0.0 0.2- 140112 K51 0.1- 0.0 130327 B86 0.9+ 0.7- 130413 A24 0.2- 0.7- 140112 K51 0.2- 0.4+ 130328 H21 0.1- 0.0 130413 A24 0.9+ 0.8+ 130328 H21 0.1- 0.2+ 130413 A24 0.1- 0.7- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2014 Jan. 18