Nakano Note (Nakano wa Kangaeru noda) NK 2684 C/2013 F2 (Catalina)

The following improved orbital elements, by S. Nakano, are from 156 observations 2012 Dec. 28 to 2014 Apr. 2. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.58 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. See the previous orbit in HICQ 2013 and NK 2615. Epoch = 2013 Apr. 18.0 TT T = 2013 Apr. 18.85035 +/- 0.00848 (m.e.) TT Peri. = 122.97746 +/- 0.00075 Node = 344.27085 +/- 0.00005 (2000.0) Inc. = 61.75018 +/- 0.00003 q = 6.2177884 +/- 0.0000142 AU e = 0.9992825 +/- 0.0000154 1/a = +0.0001154 +/- 0.0000025 1/AU origin = +0.000778 (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/ 130401 H45 0.2- 0.6- 130429 H45 0.3+ 0.9- 121228 F51 0.1+ 0.2+ 130401 H45 0.0 0.1+ 130429 H45 0.4+ 0.6+ 121228 F51 0.0 0.0 130401 H45 0.0 0.1- 130429 H45 0.6+ 0.7+ 2013/ 130401 D95 0.8- 0.2- 130501 212 0.8+ 0.1+ 130126 F51 0.5+ 0.3- 130401 D95 0.2- 0.1- 130501 212 0.9+ 0.0 130319 F51 0.0 0.3- 130402 C10 0.0 0.4+ 130501 212 0.7+ 0.5- 130319 F51 0.1- 0.3- 130402 C10 0.4- 0.5+ 130529 C32 0.5- 1.0+ 130319 F51 0.2- 0.2- 130402 C23 0.2- 0.0 130529 C32 0.8- 1.2+ 130319 F51 0.2- 0.1- 130402 C23 1.2- 0.0 130529 C32 1.1- 1.6+ 130324 703 0.5+ 0.8+ 130402 C10 0.1- 0.1+ 131211 H06 0.1- 0.2- 130324 703 (0.2- 2.1+) 130402 C23 0.6- 1.2+ 131211 H06 0.3- 0.1- 130324 703 0.4+ 0.8+ 130403 372 0.4- 1.0+ 131211 H06 0.2- 0.3- 130324 703 0.3+ 0.5+ 130403 372 0.5+ 0.4+ 131229 900 0.2+ 0.9- 130324 703 0.3+ 0.3+ 130403 372 0.2+ 1.4+ 131229 900 (2.7+ 8.7-) 130324 703 0.3- 0.3+ 130410 A24 (0.1- 3.4+) 2014/ 130324 703 0.8- 1.3+ 130410 A24 0.4- 0.5+ 140112 K51 0.6- 0.2- 130324 703 0.1+ 0.0 130412 J24 0.2- 0.8- 140112 K51 0.5- 0.2- 130324 703 1.1- 1.2+ 130413 J24 0.2- 1.1- 140112 K51 0.5- 0.2+ 130324 703 0.8- 0.5+ 130413 H45 0.0 0.0 140222 703 0.0 1.0+ 130324 H06 0.1- 0.3- 130413 H45 0.1+ 0.9- 140222 703 0.3+ 0.3+ 130324 H06 0.1- 0.3- 130413 H45 0.0 1.1- 140222 703 1.0+ 1.0+ 130324 H06 0.3- 0.2- 130413 H45 0.4- 0.1+ 140222 703 1.4+ 1.6+ 130324 I93 0.2- 0.8- 130413 H45 0.6- 0.4+ 140222 C23 1.3+ 0.2- 130324 I93 0.5+ 0.1- 130413 I57 0.7- 0.4- 140222 C23 (0.8+ 2.6-) 130324 I93 0.7- 0.8- 130413 I57 0.6- 0.1- 140223 A77 (0.9- 2.3+) 130325 711 0.1- 0.3+ 130413 I57 0.0 0.1- 140223 A77 (4.8- 0.7-) 130325 711 0.2- 0.4+ 130413 A24 0.4- 0.1- 140228 H15 1.0- 0.6- 130325 711 0.2- 0.0 130413 A24 0.4+ 0.6- 140228 H15 0.1- 0.5- 130325 H06 0.3- 0.3- 130413 A24 0.1- 0.1- 140228 H15 1.3- 0.9- 130325 H06 0.9- 0.0 130413 A24 0.2- 0.7- 140228 H15 0.2- 0.4- 130325 H06 0.9- 0.1+ 130413 A24 0.9+ 0.9+ 140304 970 0.1+ 0.7- 130326 H01 0.2- 0.2- 130413 A24 0.1- 0.7- 140304 970 0.6- 1.1- 130326 H01 0.7- 0.3+ 130414 A24 0.3+ 0.4+ 140305 K25 0.0 1.3+ 130326 H01 0.2- 0.1- 130414 A24 0.5+ 0.5+ 140305 K25 0.2- 0.5- 130326 H01 0.3- 0.3+ 130414 A24 0.7+ 0.3+ 140306 K25 0.4- 0.3- 130327 A13 (2.0- 1.1+) 130414 A24 0.3- 0.3+ 140306 K25 0.1+ 0.7- 130327 A13 0.1+ 0.4- 130414 A24 1.3+ 0.6+ 140307 215 0.1- 1.5- 130327 B86 0.1- 0.5- 130414 A24 0.2- 0.5+ 140307 130 0.5- 1.6- 130327 B86 0.3+ 0.0 130415 H45 0.6+ 0.3+ 140307 130 0.0 1.0- 130327 B86 0.4+ 0.3- 130415 H45 0.3+ 0.4+ 140307 130 1.2+ 1.0- 130327 B86 0.9+ 0.2- 130415 H45 0.1+ 0.4- 140307 130 0.2- 0.4- 130327 B86 0.9+ 0.7- 130415 H45 0.0 0.5- 140308 215 0.5- 0.9+ 130328 H21 0.1- 0.1+ 130415 H45 0.0 0.2+ 140308 215 (0.4+ 2.3+) 130328 H21 0.1- 0.2+ 130415 H45 0.1- 0.2+ 140311 703 0.7+ 0.1- 130328 H21 0.1- 0.3+ 130415 215 0.1+ 0.7+ 140311 703 0.2+ 1.1+ 130328 711 0.1+ 0.2+ 130415 215 0.1+ 0.3+ 140311 703 1.0- 0.7+ 130328 711 0.2- 0.2- 130415 215 0.2+ 0.1- 140311 703 0.3- 1.5+ 130328 711 0.1+ 0.0 130418 703 0.1+ 0.8+ 140330 561 0.1+ 0.9- 130329 H21 0.3+ 0.2- 130418 703 0.4+ 0.6+ 140330 561 0.8+ 0.3+ 130329 H21 0.1+ 0.2+ 130418 703 (0.4- 2.1+) 140330 561 0.6+ 0.4+ 130329 H21 0.3+ 0.2- 130429 H06 0.8+ 0.2+ 140330 561 1.2+ 0.4+ 130401 H45 0.0 0.3+ 130429 H06 0.7+ 0.2+ 140330 561 0.4+ 0.6- 130401 H45 0.1+ 0.1+ 130429 H06 0.6+ 0.4+ 140402 703 0.5- 0.5- 130401 H45 0.5+ 0.1- 130429 H45 0.5- 0.3- 140402 703 0.0 0.5+ 130401 H45 0.1- 0.6+ 130429 H45 0.2+ 0.4- 140402 703 0.5- 1.7+ 130401 H45 0.2- 0.5- 130429 H45 0.1+ 0.0 140402 703 0.2- 1.4+ ( ) -------- Rejected Obs.

Associate of the CBAT Syuichi Nakano 2014 Apr. 21

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