Nakano Note (Nakano wa Kangaeru noda) NK 3925 P/2019 L1 (PANSTARRS)

The following improved orbital elements, by S. Nakano, are from 88 observations 2019 May 30 to Oct. 31. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.38 arc second. Epoch = 2019 Aug. 25.0 TT T = 2019 Aug. 11.29167 +/- 0.01083 (m.e.) TT Peri. = 49.92184 +/- 0.00293 Node = 254.40896 +/- 0.00024 (2000.0) Inc. = 9.99344 +/- 0.00006 q = 2.8902192 +/- 0.0000138 AU e = 0.7064247 +/- 0.0000072 a = 9.8449000 +/- 0.0002450 AU n' = 0.03190708 +/- 0.00000119 P = 30.890 +/- 0.0011528 years (+/- 0.42 day) The predicted orbit for the 2050 return is as follows: T = 2050 Mar. 11.74755 TT Epoch = 2050 Mar. 15.0 TT Peri. = 49.89078 e = 0.7054317 Node = 254.32344 (2000.0) a = 9.7735957 AU Inc. = 9.99180 n'= 0.03225689 q = 2.8789912 AU P = 30.555 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2019/ 190623 695 0.3+ 0.3+ 190704 F52 0.0 0.1+ 190530 F51 0.2+ 0.0 190624 I52 1.2- 0.1- 190704 F52 0.1+ 0.1+ 190530 F51 0.2+ 0.1+ 190624 I52 0.9- 0.7- 190704 F52 0.0 0.1+ 190603 G96 0.3+ 0.6- 190624 I52 0.5- 0.2- 190707 G40 0.3+ 0.1- 190603 G96 0.1- 0.0 190624 L01 0.7- 0.1- 190707 G40 0.4+ 0.4+ 190603 G96 0.1+ 0.5- 190624 L01 0.5- 0.1- 190707 G40 0.5+ 0.1- 190603 G96 0.3- 0.0 190624 L01 0.8- 0.0 190725 474 0.1- 0.1- 190603 G96 0.9- 0.5- 190624 L01 0.4- 0.3- 190725 474 0.1- 0.1- 190603 G96 0.1- 0.4+ 190624 K88 0.1+ 0.4+ 190725 474 0.1- 0.3- 190603 G96 0.3- 0.0 190624 K88 0.2- 0.3+ 190727 Q62 0.1- 0.5- 190603 G96 0.2- 0.1- 190625 K88 0.2- 0.1- 190727 Q62 0.4- 0.5- 190608 F52 0.0 0.0 190625 I52 0.9- 0.0 190731 G40 0.3- 0.3- 190608 F52 0.2+ 0.1+ 190625 I52 0.1- 0.2- 190801 G40 0.6- 0.1+ 190608 F52 0.2+ 0.2+ 190626 I93 1.4- 0.7- 190801 461 0.1- 0.2+ 190612 F52 0.2+ 0.1- 190626 I93 0.2+ 0.1+ 190801 461 0.0 0.6+ 190612 F52 0.2+ 0.0 190626 I93 0.3+ 0.6+ 190801 461 0.1- 0.3+ 190612 F52 0.2+ 0.1+ 190626 691 0.2- 0.0 190803 Q11 0.0 0.3- 190612 F52 0.1- 0.2+ 190626 691 0.9- 0.2- 190803 Q11 0.0 0.3- 190614 G40 0.4- 0.2- 190626 691 0.0 0.1+ 190803 Q11 0.1- 0.4- 190614 G40 0.2- 0.2+ 190629 A71 0.5- 0.1+ 190826 Q11 0.6+ 0.1- 190614 691 0.3- 0.1+ 190629 A71 0.3- 0.5- 190826 Q11 0.5+ 0.1+ 190614 691 0.1- 0.0 190629 A71 0.2+ 0.5- 191002 474 0.0 0.4- 190614 691 0.3+ 0.1+ 190630 215 0.3- 0.5- 191002 474 0.2+ 0.2- 190614 Q62 0.2- 0.1+ 190630 A71 0.2- 0.1+ 191002 474 0.3+ 0.3+ 190614 Q62 0.1- 0.3+ 190630 215 0.4- 0.4- 191002 474 0.3+ 0.0 190615 I52 0.7- 0.3- 190630 215 0.1- 0.7- 191031 G96 0.2+ 0.3+ 190615 I52 0.9- 1.3- 190630 G40 0.0 0.7- 191031 G96 0.1+ 0.4+ 190615 I52 0.0 0.5- 190630 G40 0.3- 0.5- 191031 G96 0.0 0.5+ 190615 I52 0.1+ 0.3- 190701 G40 0.3- 0.4- 191031 G96 0.5+ 0.3+ 190623 695 0.3+ 0.3+ 190701 G40 0.2- 0.6- ( ) -------- Rejected Obs.

Associate of the CBAT Syuichi Nakano 2019 Nov. 8

Back to Nakano Note Page