Nakano Note (Nakano wa Kangaeru noda) NK 3596 367P/Catalina (2011 CR42 = 2018 H1)
The following improved orbital elements, by S. Nakano, are from 124 observations 2011 to 2018. 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. Residuals of recovery observations were +340" for Right Ascension and -169" for Declination from the prediction in NK 2602 (= HICQ 2018) with the delta-T correction = -0.24 day. Epoch = 2018 June 11.0 TT T = 2018 June 22.32378 +/- 0.00209 (m.e.) TT Peri. = 173.11447 +/- 0.00064 Node = 58.72158 +/- 0.00029 (2000.0) Inc. = 8.46464 +/- 0.00002 q = 2.5217164 +/- 0.0000056 AU e = 0.2814504 +/- 0.0000018 a = 3.5094536 +/- 0.0000118 AU n' = 0.14991491 +/- 0.00000076 P = 6.574 +/- 0.0000333 years T = 2011 Nov. 29.92474 TT Epoch = 2011 Nov. 15.0 TT Peri. = 173.50312 e = 0.2799573 Node = 58.74120 (2000.0) a = 3.5114097 AU Inc. = 8.45949 n'= 0.14978965 q = 2.5283650 AU P = 6.580 years The predicted orbit for the 2025 return is as follows: T = 2025 Jan. 11.55544 TT Epoch = 2025 Jan. 5.0 TT Peri. = 172.63860 e = 0.2800319 Node = 58.71427 (2000.0) a = 3.5112112 AU Inc. = 8.45887 n'= 0.14980236 q = 2.5279600 AU P = 6.579 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2011/ 110228 J75 0.4- 0.2+ 110506 B03 0.1- 0.9+ 110210 703 0.5- 0.2- 110228 J75 0.2- 0.2- 110506 B03 0.7+ 0.4+ 110210 703 0.5- 0.1- 110303 H06 0.9+ 0.5+ 110506 B03 0.2+ 1.0+ 110210 703 0.6- 0.1- 110303 H06 0.7+ 1.1+ 110507 B03 0.8+ 1.2+ 110210 703 0.7- 0.2- 110303 H06 0.8+ 0.3+ 110507 B03 0.6+ 1.3+ 110211 106 0.3- 0.3- 110303 H06 1.1+ 0.5+ 110507 B03 1.0+ 0.8+ 110211 106 0.2- 0.1- 110303 H06 1.0+ 0.6- 110507 B03 (2.1+ 0.2+) 110211 106 0.2+ 0.1+ 110305 703 (2.0- 0.4+) 110624 H06 0.8- 0.4+ 110211 106 0.2- 0.2- 110305 703 0.6- 0.2+ 110624 H06 0.4- 0.8+ 110211 H06 0.1+ 0.5- 110305 703 0.7- 0.5+ 2013/ 110211 H06 0.2+ 0.4- 110305 703 0.9- 0.3- 130809 J43 0.5- 0.1- 110211 H06 0.1- 0.1+ 110306 I41 0.0 0.0 130809 J43 0.1+ 0.1- 110211 H10 0.2- 0.6- 110306 I41 0.0 0.0 130809 J43 0.1+ 0.1+ 110211 H01 0.1- 0.2- 110306 I41 0.1+ 0.0 130810 J43 0.3- 0.1- 110211 H01 0.2- 0.1- 110306 I41 0.1+ 0.0 130810 J43 0.4- 0.0 110211 850 0.3- 0.5- 110308 704 (2.1+ 0.7+) 130810 J43 0.8- 0.3- 110211 H10 0.2- 0.5- 110308 704 0.2+ 0.6+ 130810 J43 0.4- 0.2- 110211 H01 0.2- 0.2- 110308 704 1.3+ 0.2+ 130925 675 1.8- 0.2+ 110211 H10 0.4- 0.1- 110308 704 0.6+ 0.4+ 130925 675 1.1- 0.4+ 110211 H01 0.2- 0.2- 110310 G96 0.2+ 0.2+ 131001 Q62 0.1+ 0.6+ 110211 H10 0.4- 0.4+ 110310 G96 0.2+ 0.1- 131001 Q62 0.0 0.7+ 110211 H10 0.3+ 0.6- 110310 G96 0.2+ 0.1- 131001 Q62 0.0 0.8+ 110211 H10 0.4+ 0.1+ 110310 G96 0.5+ 0.0 131002 H06 0.8+ 0.0 110211 850 0.2+ 0.5- 110310 D29 0.6- 0.3- 131002 H06 0.8+ 1.4- 110211 H06 1.0- 0.2+ 110310 D29 0.1- 0.1- 131009 Q62 0.1- 0.6- 110211 H06 0.1- 0.2- 110310 D29 0.8+ 0.2+ 131009 Q62 0.5+ 0.4- 110211 H06 1.1- 0.0 110310 D29 0.6- 0.4+ 131024 Q62 0.9- 1.9+ 110211 H06 0.2- 0.8- 110314 703 0.6+ 0.3- 131024 Q62 0.2- 1.6+ 110211 H10 0.3- 0.0 110314 703 0.1+ 0.5- 131024 Q62 0.2- 1.2+ 110211 H10 0.2- 0.1+ 110314 703 0.3- 0.1+ 131025 Q62 0.5- 1.0+ 110211 H10 0.4- 0.0 110314 703 0.8- 0.5- 131025 Q62 0.0 1.1+ 110211 H06 0.1- 0.4+ 110325 703 0.7+ 0.3+ 131025 Q62 0.2- 1.3+ 110212 704 0.9+ 0.1+ 110325 703 0.5+ 0.1- 131030 E10 0.9+ 0.2+ 110212 704 0.4+ 1.0+ 110325 703 0.0 0.0 131030 E10 0.1- 0.2+ 110212 704 0.3- 0.6+ 110325 703 0.5+ 0.2+ 2018/ 110212 704 0.3+ 1.0+ 110325 703 1.3+ 1.3- 180417 Z84 0.2+ 0.3+ 110212 704 0.2- 1.1+ 110325 703 1.1+ 0.2- 180417 Z84 0.4+ 0.1+ 110224 235 0.7- 0.1- 110325 703 0.6+ 0.8- 180417 Z84 0.1+ 0.1+ 110224 235 0.6- 0.3+ 110325 703 1.4+ 0.4- 180417 Z84 0.2- 0.4+ 110225 703 1.3- 0.5+ 110331 G96 0.6+ 0.0 180418 Z84 0.5- 0.0 110225 703 1.5- 0.5+ 110331 G96 1.3+ 0.0 180418 Z84 0.0 0.3- 110225 703 1.2- 0.6+ 110331 G96 0.6+ 0.1+ 180418 Z84 0.3+ 0.2- 110225 703 1.4- 0.3+ 110331 G96 0.3+ 0.2+ 110228 J75 0.2- 0.0 110506 B03 1.0+ 1.1+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2018 May 18