Nakano Note (Nakano wa Kangaeru noda) NK 4884 C/2022 J2 (Bok)
The following improved orbital elements, by S. Nakano, are from 99 observations 2022 May 9 to Dec. 2. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.57 arc second. Residuals for 2022 December observations were about 15" from an orbit in NK 4842. The comet will pass 1.93 AU from Jupiter on 2023 Aug. 12 and 4.54 AU from Saturn on 2025 Apr. 17 UT. See the previous orbits in CBET 5143 and NK 4842. Epoch = 2022 Oct. 28.0 TT T = 2022 Oct. 27.06680 +/- 0.00040 (m.e.) TT Peri. = 133.06685 +/- 0.00023 Node = 252.55878 +/- 0.00005 (2000.0) Inc. = 149.09245 +/- 0.00002 q = 1.8275589 +/- 0.0000046 AU e = 0.9801460 +/- 0.0000096 1/a = +0.0108637 +/- 0.0000053 1/AU origin = +0.011847 (Q= 7) future = +0.011087 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2022/ 220523 V06 0.1- 0.2- 221120 703 0.5- 0.1+ 220509 V00 0.6- 0.4- 220523 V06 0.3- 0.1- 221120 703 0.4- 0.4+ 220509 V00 0.4+ 0.7- 220524 658 0.3+ 0.9+ 221120 703 1.7- 1.0- 220509 V00 0.3+ 0.1+ 220524 658 0.2+ 0.8+ 221121 I81 0.5- 0.2+ 220509 V00 0.1+ 0.2+ 220524 658 0.2+ 1.0+ 221121 I81 0.4+ 0.0 220509 V00 0.0 0.3- 220524 291 0.5+ 0.4+ 221123 I81 0.0 0.1- 220509 V00 0.3- 0.6- 220524 291 0.9+ 0.0 221123 I81 0.1+ 0.2- 220509 V00 0.1- 0.7- 220525 568 0.0 0.1- 221123 T14 1.0+ 0.4- 220509 V00 0.1+ 0.0 220525 568 0.0 0.1- 221123 T14 1.0+ 0.4- 220509 G96 0.1- 0.5+ 220525 568 0.0 0.1- 221125 G96 0.1+ 0.1+ 220509 G96 0.2- 0.8- 220623 568 0.2+ 0.2- 221125 G96 0.2+ 0.2- 220509 291 0.5- 0.2- 220623 568 0.1+ 0.2- 221125 G96 0.0 0.1- 220509 291 0.6- 0.3- 220626 568 0.2+ 0.1- 221125 G96 0.5+ 0.3+ 220510 568 0.1- 0.2- 220626 568 0.2+ 0.1- 221126 703 0.6+ 0.4- 220510 568 0.3+ 0.7- 221026 H06 0.1- 0.6- 221126 703 0.1+ 1.3+ 220510 568 0.1+ 0.2- 221026 H06 0.0 0.5- 221126 703 1.2- 1.1+ 220510 568 0.2+ 0.2+ 221026 H06 0.2- 0.0 221126 T08 0.1- 0.8- 220510 568 0.3- 0.1- 221029 703 (0.5- 2.2+) 221126 T08 1.2+ 0.4+ 220510 291 0.2+ 0.1- 221029 703 0.1- 0.8+ 221126 T08 0.7+ 0.1+ 220510 291 1.1+ 0.1- 221029 703 0.2- 0.4+ 221126 T08 0.6+ 0.2- 220511 291 0.1- 0.2- 221107 F51 0.5+ 0.3- 221127 215 0.7+ 0.4- 220511 291 0.0 0.0 221107 F51 0.2+ 0.1+ 221127 215 0.5+ 0.2- 220512 291 0.2+ 0.2- 221107 F51 0.7+ 0.1- 221127 215 0.4+ 0.0 220512 291 0.0 0.6+ 221107 F51 0.6+ 0.2- 221129 I81 1.1- 0.4+ 220518 695 0.0 0.1+ 221112 C51 1.1+ 1.4- 221129 I81 0.3+ 0.6- 220518 695 0.6+ 0.6- 221112 C51 (3.1+ 1.0-) 221129 I81 0.1+ 0.0 220519 291 0.4+ 0.7+ 221112 C51 1.1+ 1.7+ 221129 703 0.1+ 0.1+ 220519 291 0.6+ 0.9+ 221112 C51 (2.9+ 1.3-) 221129 703 0.7- 1.1- 220520 658 0.3- 1.0+ 221112 G96 0.7- 0.3+ 221129 703 0.2- 0.7+ 220520 658 0.3- 0.7+ 221112 G96 0.7- 0.3- 221129 703 0.9- 0.1+ 220520 658 0.1+ 0.6+ 221112 C51 0.1+ 1.2- 221202 703 0.5- 0.6+ 220520 658 0.3- 0.3+ 221112 C51 (1.8- 2.7+) 221202 703 0.4- 0.2+ 220520 658 0.4- 0.1- 221119 A77 1.7- 1.3+ 221202 703 0.3+ 1.0- 220523 V06 0.2- 0.2- 221119 A77 1.7- 1.5+ 221202 703 0.8+ 0.1- 220523 V06 0.1- 0.4- 221119 A77 0.7- 1.1+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2022 Dec. 12