Nakano Note (Nakano wa Kangaeru noda) NK 4668 P/McNaught (P/McNaught (2011 Q3 = 2000 Wx (ABS52C) = 2022 Gx)
The following improved orbital elements, by S. Nakano, are from 156 observations 2000 to 2022. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.64 arc second. Residuals were +15" for Right Ascension and +3" for Declination from the prediction in NK 2201 (= HICQ 2021) with the delta-T correction = -0.02 day. An object in 2000 was found from a linked orbit 2011-2022 with the residuals of -16" and -2" which was delta-T = -0.014 day. The comet has passed 0.75 AU and 0.53 AU from Jupiter on 1990 July 30 and 2002 April 9 UT, respectively. Due to these approaches 1988 orbit was some changed. Epoch = 2022 Aug. 9.0 TT T = 2022 Aug. 19.16746 +/- 0.00157 (m.e.) TT Peri. = 310.98480 +/- 0.00034 Node = 32.01908 +/- 0.00028 (2000.0) Inc. = 6.05796 +/- 0.00004 q = 2.3225275 +/- 0.0000068 AU e = 0.5333985 +/- 0.0000013 a = 4.9775399 +/- 0.0000199 AU n' = 0.08875278 +/- 0.00000053 P = 11.105 +/- 0.0000666 years [ T = 1988 Sept.19.99343 TT Epoch = 1988 Oct. 6.0 TT Peri. = 284.63254 e = 0.5323533 Node = 60.07435 (2000.0) a = 4.9507864 AU Inc. = 7.46930 n'= 0.08947316 q = 2.3152190 AU P = 11.016 years ] T = 2000 Apr. 17.95027 TT Epoch = 2000 Apr. 6.0 TT Peri. = 293.52286 e = 0.5278906 Node = 54.22483 (2000.0) a = 5.1101719 AU Inc. = 6.93629 n'= 0.08531999 q = 2.4125604 AU P = 11.552 years T = 2011 Aug. 14.33779 TT Epoch = 2011 Aug. 27.0 TT Peri. = 310.24219 e = 0.5313772 Node = 35.31554 (2000.0) a = 5.0529201 AU Inc. = 6.05256 n'= 0.08677416 q = 2.3679137 AU P = 11.358 years The predicted orbit for the 2033 return is as follows: T = 2033 July 24.20556 TT Epoch = 2033 July 22.0 TT Peri. = 310.11354 e = 0.5324946 Node = 31.15189 (2000.0) a = 4.9695448 AU Inc. = 6.09437 n'= 0.08896704 q = 2.3232893 AU P = 11.078 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2000/ 110926 958 (1.4- 2.4-) 111002 958 1.3- 1.8- 001128 691 0.5- 1.3+ 110926 958 (2.7- 3.7-) 111005 958 1.1- 1.2+ 001128 691 0.9- 1.2+ 110926 958 (3.2- 0.9+) 111005 958 1.6- 1.6- 001128 691 0.1- 1.7+ 110926 H06 0.3+ 0.1+ 111005 958 (2.3- 0.6+) 2011/ 110926 H06 0.4+ 0.1+ 111006 703 0.0 0.0 110829 E12 0.6+ 0.0 110926 H06 0.3+ 0.1+ 111006 703 0.5+ 0.0 110829 E12 0.3+ 0.4- 110926 958 (0.6- 3.5-) 111006 703 0.1+ 1.0+ 110830 E12 0.2+ 0.2- 110926 958 (2.6- 1.0-) 111006 703 0.8+ 0.2- 110830 E12 0.0 0.1- 110926 958 1.6- 1.0- 111015 246 0.6- 1.4+ 110830 E12 0.2+ 0.0 110927 H06 0.4+ 0.0 111015 246 1.5- 1.4+ 110830 E12 0.2- 0.1+ 110927 H06 0.3+ 0.0 111015 958 (1.0+ 2.9-) 110830 E12 0.3+ 0.2+ 110927 704 0.0 0.5+ 111015 958 (1.4- 2.7-) 110831 807 0.5+ 0.2+ 110927 704 0.2- 0.3+ 111017 958 1.5- 0.9- 110831 807 0.3+ 0.3+ 110927 704 0.2- 0.3+ 111017 958 (2.3- 1.5-) 110831 807 0.4+ 0.3+ 110927 958 0.7- 0.4+ 111017 958 (2.7- 2.3-) 110831 807 0.4+ 0.2+ 110927 958 (2.3- 1.3-) 111019 372 0.6+ 0.1+ 110831 E12 0.2+ 0.0 110927 958 1.7- 0.3+ 111019 372 0.6+ 0.5+ 110831 E12 0.2+ 0.2+ 110928 H06 0.3+ 0.6+ 111019 372 0.3- 0.0 110831 E12 0.0 0.1- 110928 H06 0.0 0.6+ 111020 958 (2.2- 3.2-) 110831 J95 0.2- 0.7- 110928 H06 0.2- 0.5+ 111021 958 0.7+ 0.1- 110901 J95 0.1- 0.2- 110928 H06 0.3+ 0.0 111021 E07 0.4+ 0.0 110901 J95 0.4+ 0.0 110928 H06 0.6+ 0.2+ 111021 E07 0.9+ 0.3- 110901 850 0.3- 0.0 110928 H06 0.3+ 0.3+ 111021 C10 0.9+ 0.2- 110901 850 0.7- 0.3+ 110928 958 1.3- 0.0 111021 C10 1.1+ 0.4- 110901 850 0.2- 1.1- 110928 958 0.2- 0.2+ 111021 C10 1.0+ 0.4+ 110902 H06 0.6+ 0.4+ 110928 958 0.1+ 0.7- 111021 958 (4.5- 0.3-) 110902 H06 0.5+ 0.3+ 110929 H06 0.9+ 0.1- 111021 958 1.0- 1.0- 110902 H06 0.3+ 0.3+ 110929 H06 1.0+ 0.1- 111025 958 (4.3- 2.8-) 110902 E07 0.2+ 0.0 110929 H06 0.6+ 0.6- 111025 958 1.0+ 1.2+ 110902 E07 0.3+ 0.0 110929 349 0.2- 0.1+ 111029 D90 0.4+ 0.8- 110903 585 0.3- 0.6+ 110929 349 0.4- 0.2+ 111029 D90 0.4+ 0.0 110903 585 1.5- 0.6+ 110929 958 (5.6- 0.5-) 111029 D90 0.0 0.1- 110903 585 1.0- 0.2+ 110929 958 1.7- 1.9- 111029 C32 0.4+ 0.5+ 110904 585 0.0 0.5+ 110929 958 (3.4- 1.3-) 111029 C32 1.0+ 0.1+ 110904 474 0.0 0.2+ 110930 H06 0.1- 0.2+ 111029 C32 0.8+ 0.5+ 110904 474 0.1- 0.2+ 110930 H06 0.3- 0.3+ 111029 204 0.7+ 0.3+ 110904 474 0.0 0.1+ 110930 B51 0.3- 0.1- 111029 204 0.9+ 0.3- 110906 372 0.4+ 0.5+ 110930 958 (4.2- 4.4-) 111031 372 0.9+ 0.4+ 110906 372 (6.9+ 4.8+) 110930 958 (6.3- 2.0-) 111031 372 0.5+ 0.0 110906 372 0.8+ 0.0 110930 B51 0.1+ 0.0 111117 C32 0.7+ 0.2- 110914 D90 0.6+ 0.6+ 110930 958 (6.2- 4.1-) 111117 C32 0.2+ 0.2+ 110914 D90 0.5+ 0.5+ 110930 046 0.4+ 0.1- 111117 C32 1.1+ 0.3- 110914 D90 0.4+ 0.2+ 110930 046 0.0 0.5+ 111117 958 (1.3- 6.3-) 110919 C32 0.2+ 0.1+ 110930 046 0.3- 0.2- 111117 958 (0.4- 3.3-) 110919 C32 0.1- 1.0+ 110930 046 0.0 0.3+ 111126 349 1.2+ 1.9- 110919 C32 0.8- 0.1+ 110930 046 0.3+ 0.1+ 111126 349 (2.5+ 1.3-) 110920 703 1.0- 0.9- 110930 046 0.8+ 0.1+ 111222 D90 0.9+ 0.6- 110920 703 0.7- 0.2+ 110930 046 0.5+ 0.3+ 111222 D90 0.7+ 1.0- 110920 703 0.6- 0.0 110930 046 0.6- 0.4+ 111223 C32 0.3- 0.6- 110920 703 1.9- 0.1- 110930 J01 0.4+ 0.4- 111223 C32 0.8+ 0.0 110920 215 0.2- 0.6- 111001 J01 0.7+ 0.4+ 111224 G96 0.1- 0.5- 110920 215 0.2+ 0.3- 111001 J01 0.7- 0.9+ 111224 G96 0.3+ 0.6- 110920 215 0.5+ 0.1- 111001 958 2.0- 0.8- 111224 G96 0.0 0.6- 110922 C10 0.3- 0.3+ 111001 958 (3.5- 3.5-) 111224 G96 0.2- 0.4- 110923 C10 0.3- 0.3+ 111001 958 1.7- 1.9- 2022/ 110925 A71 0.5- 0.1- 111002 130 0.6+ 0.4- 220405 Q62 0.3- 0.1+ 110925 A71 0.2+ 0.1+ 111002 130 0.0 0.3+ 220405 Q62 0.3- 0.5+ 110925 A71 0.4- 0.3- 111002 130 0.1+ 0.6- 220410 Q62 0.1- 0.2+ 110925 A71 0.4- 0.0 111002 130 0.4+ 0.2- 220410 Q62 0.1- 0.3+ 110925 A71 0.1- 0.5- 111002 958 1.3- 0.5- 220411 Q62 0.7+ 0.3+ 110925 A71 0.8- 0.8- 111002 958 0.6+ 1.0- 220411 Q62 0.4+ 0.2+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2022 Apr. 12