Nakano Note (Nakano wa Kangaeru noda) NK 4694 P/2022 C3 (PANSTARRS)
The following improved orbital elements, by S. Nakano, are from 42 observations 2022 Jan. 19 to Apr. 14. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.34 arc second. See an orbit in CBET 5099. Epoch = 2022 June 30.0 TT T = 2022 July 1.94899 +/- 0.16046 (m.e.) TT Peri. = 94.04428 +/- 0.02330 Node = 139.04976 +/- 0.00211 (2000.0) Inc. = 12.81529 +/- 0.00012 q = 4.3735865 +/- 0.0001914 AU e = 0.5465995 +/- 0.0000363 a = 9.6461877 +/- 0.0008795 AU n' = 0.03289808 +/- 0.00000450 P = 29.959 +/- 0.0040975 years (+/- 1.50 days) The predicted orbit for the 2052 return is as follows: T = 2052 May 21.88186 TT Epoch = 2052 May 23.0 TT Peri. = 94.71669 e = 0.5433795 Node = 138.83047 (2000.0) a = 9.5658760 AU Inc. = 12.80207 n'= 0.03331325 q = 4.3679753 AU P = 29.586 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2022/ 220210 L27 0.7- 0.2+ 220301 X03 0.3- 0.2+ 220119 F52 0.3+ 0.4- 220210 807 0.1- 0.0 220301 X03 0.2- 0.1- 220119 F52 0.3- 0.2- 220210 807 0.1- 0.1- 220403 F52 0.1+ 0.0 220120 F52 0.0 0.4- 220210 807 0.5- 0.4- 220403 F52 0.0 0.1+ 220120 F52 0.4- 0.1- 220210 F52 0.0 0.0 220403 F52 0.1+ 0.0 220122 F52 0.0 0.5- 220210 F52 0.1+ 0.0 220403 F52 0.1+ 0.1+ 220122 F52 0.3+ 0.3- 220211 I52 0.6+ 0.2+ 220407 F52 0.2+ 0.1- 220208 F52 0.0 0.2+ 220211 I52 0.3- 0.1+ 220407 F52 0.1+ 0.1+ 220208 F52 0.0 0.1- 220211 I52 0.4- 0.1- 220407 F52 0.2+ 0.1- 220209 F52 0.1+ 0.0 220213 Q62 0.7+ 0.4+ 220407 F52 0.0 0.1+ 220209 F52 0.2+ 0.0 220213 Q62 0.4+ 0.0 220414 G96 0.0 0.2- 220209 F52 0.1+ 0.0 220301 215 0.9- 0.0 220414 G96 0.3- 0.2- 220209 F52 0.1+ 0.0 220301 215 1.1- 0.1+ 220414 G96 0.2- 0.1+ 220210 L27 (2.1- 0.9+) 220301 215 1.1- 0.3+ 220414 G96 0.2- 0.1+ 220210 L27 1.3+ 0.6+ 220301 X03 0.1- 0.4+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2022 Apr. 22