Nakano Note (Nakano wa Kangaeru noda) NK 4887 P/LONEOS-PANSTARRS (2022 M1 = 2000 OZ21)

The following improved orbital elements, by S. Nakano, are from 178 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 +/- 0.51 arc second. The comet has passed 2.84 AU from Saturn on 2007 May 3 and 0.49 AU from Jupiter on 2013 Oct. 7 UT. See the previous orbits CBET 5146 and CBET 5166 (= NK 4813). Epoch = 2022 Aug. 9.0 TT T = 2022 Aug. 2.38637 +/- 0.00166 (m.e.) TT Peri. = 4.47131 +/- 0.00068 Node = 322.92163 +/- 0.00009 (2000.0) Inc. = 7.02698 +/- 0.00003 q = 2.0614022 +/- 0.0000033 AU e = 0.5783713 +/- 0.0000009 a = 4.8891406 +/- 0.0000134 AU n' = 0.09117070 +/- 0.00000037 P = 10.811 +/- 0.0000445 years T = 2000 Sept. 8.47770 TT Epoch = 2000 Sept.13.0 TT Peri. = 348.31789 e = 0.5784062 Node = 340.12317 (2000.0) a = 4.9542398 AU Inc. = 5.60579 n'= 0.08937963 q = 2.0886767 AU P = 11.027 years [ T = 2011 Oct. 29.49141 TT Epoch = 2011 Nov. 15.0 TT Peri. = 350.03365 e = 0.5801630 Node = 339.39706 (2000.0) a = 4.9677994 AU Inc. = 5.65046 n'= 0.08901394 q = 2.0856660 AU P = 11.073 years ] The predicted orbit for the 2033 return is as follows: T = 2033 Mar. 20.18636 TT Epoch = 2033 Mar. 24.0 TT Peri. = 3.42644 e = 0.5782042 Node = 322.55178 (2000.0) a = 4.8646513 AU Inc. = 7.05032 n'= 0.09186001 q = 2.0518896 AU P = 10.729 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2000/ 220801 X03 0.0 0.1- 220901 W68 0.2- 0.2- 000729 699 0.3- 0.8- 220802 G00 0.4- 0.2- 220901 W68 (4.3+ 2.7-) 000729 699 0.4- 0.5+ 220802 G00 0.5- 0.2- 220901 W68 1.0+ 1.4- 000729 699 0.4- 1.2- 220802 G00 0.2- 0.0 220901 W68 0.6- 0.1- 000729 699 1.8- 1.6+ 220803 D29 1.0- 0.1- 220902 W62 0.2+ 0.5- 000801 711 0.5+ 1.0+ 220803 D29 1.0- 1.1- 220902 W62 0.4- 0.5- 000801 711 0.4+ 0.8+ 220803 D29 0.4- 0.1- 220902 W62 0.1+ 0.2- 000801 711 0.4+ 1.0+ 220803 D29 0.9- 0.3+ 220904 T08 0.1- 0.6- 000801 474 0.9- 0.3+ 220803 D29 1.0- 0.1- 220904 T08 0.1+ 0.3- 000801 474 0.9- 0.1+ 220803 D29 0.4- 0.2- 220904 T08 0.3- 0.1- 000801 474 1.0- 0.1- 220804 215 0.1- 0.1- 220904 T08 0.3+ 0.1- 000801 557 0.6+ 0.1+ 220804 215 0.2- 0.3- 220905 D29 0.8- 0.3- 000801 557 0.0 0.0 220804 215 0.4- 0.5- 220905 D29 0.2- 0.5- 000803 711 0.6+ 0.9+ 220805 D29 0.5- 0.1- 220905 D29 0.1- 0.2- 000803 711 0.7+ 0.8+ 220805 D29 0.7- 0.1- 220906 D29 0.2- 0.4- 000803 711 0.1- 0.8+ 220805 D29 0.7+ 0.5- 220906 D29 0.4- 0.1- 2022/ 220817 T05 0.4- 0.4- 220906 D29 0.5- 0.5- 220531 G96 1.0- 0.4- 220817 T05 0.1+ 0.3- 220914 F51 0.2+ 0.2+ 220531 G96 0.3- 0.1- 220817 T05 0.3- 1.0- 220914 F51 0.1+ 0.3+ 220531 G96 0.4- 1.0- 220817 T05 0.3- 0.1- 220914 F51 0.0 0.2+ 220615 W84 0.3+ 0.4+ 220818 D29 0.5- 0.2- 220914 F51 0.1+ 0.3+ 220615 W84 0.7+ 0.4+ 220818 D29 0.7- 0.0 220916 T08 0.2+ 0.3+ 220615 W84 0.6+ 0.5+ 220818 D29 0.6- 0.3+ 220916 T08 0.3+ 0.6+ 220629 F52 0.3+ 0.3+ 220819 F51 0.1+ 0.1+ 220916 T08 0.2- 0.4- 220629 F52 0.3+ 0.2+ 220819 F51 0.1+ 0.1+ 220916 T08 0.4+ 0.3+ 220629 F52 0.5+ 0.3+ 220819 F51 0.2+ 0.2+ 220919 F51 0.1+ 0.3+ 220629 F52 0.4+ 0.2+ 220819 F51 0.1+ 0.2+ 220919 F51 0.0 0.2+ 220630 807 0.1+ 0.2+ 220819 T08 0.5- 0.3- 220919 F51 0.0 0.2+ 220630 807 0.2- 0.2+ 220819 T08 0.3+ 0.4- 220919 F51 0.1+ 0.3+ 220630 807 0.2+ 0.2+ 220819 T08 1.5- 0.3+ 220921 215 0.7+ 0.5- 220630 568 0.6+ 0.3+ 220819 T08 0.6- 0.3- 220921 215 0.8+ 0.6- 220630 568 0.6+ 0.3+ 220820 D29 0.5- 0.2- 220921 215 1.3+ 1.3- 220630 568 0.6+ 0.3+ 220820 D29 0.4- 0.3+ 220922 T05 0.8- 0.3- 220702 H06 0.2+ 0.2- 220820 D29 0.6- 0.2- 220922 T05 0.3+ 0.4+ 220702 H06 0.4+ 0.1+ 220821 T05 1.9- 1.5- 220922 T05 0.2+ 0.9- 220705 568 0.4+ 0.3+ 220821 T05 0.4- 0.6- 220922 T05 0.6+ 0.1- 220705 568 0.4+ 0.3+ 220821 T05 1.3- 0.4- 220926 F51 0.2+ 0.2+ 220705 568 0.4+ 0.3+ 220821 T05 1.2- 0.1+ 220926 F51 0.1+ 0.2+ 220706 568 0.3+ 0.2+ 220823 T08 1.0- 0.4- 220926 F51 0.1+ 0.1+ 220706 568 0.8+ 0.4+ 220823 T08 0.0 0.2+ 220926 F51 0.0 0.2+ 220706 568 0.4+ 0.2+ 220823 T08 0.1+ 0.1+ 220929 W68 0.9+ 0.5- 220706 568 0.2+ 0.2+ 220823 T08 1.0+ 0.2+ 220929 W68 0.1+ 0.1+ 220706 568 0.2+ 0.2+ 220824 W68 0.0 0.4- 220929 W68 0.5+ 0.2- 220708 L06 1.0+ 0.0 220824 W68 0.1+ 0.5- 220929 W68 0.6+ 0.1+ 220708 L06 1.2+ 0.1+ 220824 W68 0.4+ 0.2+ 221014 F52 0.1- 0.1+ 220720 F52 0.2+ 0.2+ 220824 W68 0.0 0.6- 221014 F52 0.1+ 0.5+ 220720 F52 0.1+ 0.4+ 220825 D29 0.0 0.2- 221014 F52 0.0 0.3+ 220720 F52 0.1+ 0.6+ 220825 D29 0.2- 0.4- 221014 F52 0.2+ 0.3+ 220720 F52 0.3+ 0.0 220825 D29 0.6- 0.2- 221029 G96 0.8+ 0.3- 220723 D29 0.3- 0.2+ 220828 W68 0.4- 0.5+ 221029 G96 0.9+ 0.2+ 220723 D29 0.3- 0.1+ 220828 W68 0.4+ 0.1+ 221029 G96 0.6+ 0.2+ 220723 D29 0.4- 0.1+ 220828 W68 0.2- 0.0 221029 G96 0.9+ 0.1+ 220727 F52 0.2+ 0.2+ 220828 W68 0.9- 0.3- 221108 G96 1.1+ 1.0+ 220727 F52 0.2+ 0.3+ 220829 T05 0.7- 0.0 221108 G96 0.3- 0.7+ 220727 F52 0.3+ 0.2+ 220829 T05 0.1- 0.3- 221108 G96 0.5+ 0.6+ 220727 F52 0.2+ 0.3+ 220829 T05 0.5- 0.6+ 221108 G96 0.5- 1.0+ 220730 A77 0.2+ 0.6+ 220829 T05 0.3+ 0.1+ 221119 G96 0.2+ 0.8- 220730 A77 0.3- 0.7+ 220831 T08 0.4- 0.3- 221119 G96 0.0 0.1+ 220730 A77 0.1- 0.6+ 220831 T08 0.2- 0.3- 221119 G96 1.4- 0.3- 220801 X03 0.3- 0.5+ 220831 T08 0.4- 0.3- 220801 X03 0.1- 0.3+ 220831 T08 0.1- 0.2- ( ) -------- Rejected Obs.

Associate of the CBAT Syuichi Nakano 2022 Dec. 12

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