Nakano Note (Nakano wa Kangaeru noda) NK 4709 P/2022 C3 (PANSTARRS)

The following improved orbital elements, by S. Nakano, are from 71 observations 2022 Jan. 19 to May 11. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.29 arc second. The comet will pass 3.59 AU from Saturn and 2.47 AU from Jupiter on 2026 July 17 and 2050 Nov. 14 UT, respectively. See the previous orbits in CBET 5099 and NK 4694. Epoch = 2022 June 30.0 TT T = 2022 July 1.38097 +/- 0.09128 (m.e.) TT Peri. = 93.95960 +/- 0.01302 Node = 139.05771 +/- 0.00105 (2000.0) Inc. = 12.81577 +/- 0.00005 q = 4.3743549 +/- 0.0000810 AU e = 0.5467512 +/- 0.0000101 a = 9.6511118 +/- 0.0002798 AU n' = 0.03287290 +/- 0.00000143 P = 29.982 +/- 0.0013037 years (+/- 0.48 day) The predicted orbit for the 2052 return is as follows: T = 2052 May 29.73686 TT Epoch = 2052 May 23.0 TT Peri. = 94.66325 e = 0.5433722 Node = 138.83667 (2000.0) a = 9.5652800 AU Inc. = 12.80270 n'= 0.03331636 q = 4.3677725 AU P = 29.583 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2022/ 220213 Q62 0.4+ 0.0 220424 867 0.3- 0.0 220119 F52 0.5+ 0.2- 220301 215 0.8- 0.2- 220424 867 0.0 0.0 220119 F52 0.2- 0.0 220301 215 1.0- 0.1- 220427 F52 0.2+ 0.0 220120 F52 0.1+ 0.1- 220301 215 1.1- 0.1+ 220427 F52 0.2+ 0.0 220120 F52 0.3- 0.1+ 220301 X03 0.0 0.2+ 220427 F52 0.2+ 0.0 220122 F52 0.0 0.4- 220301 X03 0.2- 0.0 220427 F52 0.2+ 0.0 220122 F52 0.4+ 0.1- 220301 X03 0.2- 0.4- 220428 F52 0.2+ 0.1+ 220208 F52 0.1- 0.2+ 220403 F52 0.2+ 0.0 220428 F52 0.2+ 0.1+ 220208 F52 0.1- 0.1- 220403 F52 0.1+ 0.1+ 220428 F52 0.2+ 0.0 220209 F52 0.0 0.0 220403 F52 0.2+ 0.0 220428 F52 0.2+ 0.1- 220209 F52 0.1+ 0.0 220403 F52 0.2+ 0.0 220428 215 0.5- 0.3+ 220209 F52 0.0 0.1- 220407 F52 0.2+ 0.1- 220428 215 0.4- 0.1+ 220209 F52 0.1+ 0.0 220407 F52 0.1+ 0.1+ 220428 215 0.3- 0.2- 220210 L27 (2.2- 0.9+) 220407 F52 0.2+ 0.1- 220502 G96 0.0 0.1- 220210 L27 1.2+ 0.6+ 220407 F52 0.1+ 0.1+ 220502 G96 0.1- 0.1+ 220210 L27 0.8- 0.1+ 220414 G96 0.2- 0.1- 220502 G96 0.1+ 0.2- 220210 807 0.2- 0.1- 220414 G96 0.4- 0.1- 220502 G96 0.1- 0.1- 220210 807 0.1- 0.1- 220414 G96 0.3- 0.2+ 220503 D29 1.0- 0.2- 220210 807 0.5- 0.4- 220414 G96 0.4- 0.2+ 220503 D29 0.2- 0.2+ 220210 F52 0.0 0.0 220424 G96 0.4- 0.2- 220503 D29 0.2- 0.2+ 220210 F52 0.1+ 0.1- 220424 G96 0.2- 0.0 220511 W62 0.1- 0.0 220211 I52 0.5+ 0.2+ 220424 G96 0.0 0.1+ 220511 W62 0.5- 0.1- 220211 I52 0.4- 0.1+ 220424 G96 0.2- 0.0 220511 W62 0.2- 0.3+ 220211 I52 0.5- 0.2- 220424 867 0.4- 0.1+ 220213 Q62 0.7+ 0.3+ 220424 867 0.1- 0.0 ( ) -------- Rejected Obs.

Associate of the CBAT Syuichi Nakano 2022 May 23

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