Nakano Note (Nakano wa Kangaeru noda) NK 5535 P/PANSTARRS (2017 B4 = 2026 Ax)
T. Kobayashi has found the following identifications with this comet. PK17B040* C2017 02 27.30994 09 30 40.520+27 19 54.41 P10zRUk 21.3 w F51 PK17B040 C2017 02 27.32153 09 30 40.140+27 19 59.91 P10zRUk 21.3 w F51 PK17B040 C2017 02 27.33308 09 30 39.760+27 20 05.19 P10zRUk 21.2 w F51 PK17B040 C2017 02 27.34475 09 30 39.383+27 20 10.50 p10zRUk 21.3 w F51 PK17B040 C2026 01 13.44715110 35 56.396+20 27 00.22 C19AT25 21.2 G V00 PK17B040 C2026 01 13.45275310 35 56.389+20 27 03.60 C19AT25 21.1 G V00 PK17B040 C2026 01 13.45833710 35 56.368+20 27 07.74 C19AT25 21.0 G V00 PK17B040 C2026 01 13.46392010 35 56.353+20 27 11.23 C19AT25 21.0 G V00 PK17B040 C2026 01 14.45080810 35 54.728+20 37 34.12 P12kkw6 21.6 w F51 PK17B040 C2026 01 14.47458310 35 54.655+20 37 49.29 P12kkw6 21.8 w F51 PK17B040 C2026 01 14.48655010 35 54.572+20 37 57.08 P12kkw6 21.9 w F51 PK17B040 C2026 01 15.41784710 35 51.364+20 47 51.65 C19QJN5 20.9 G V00 PK17B040 C2026 01 15.42343010 35 51.349+20 47 55.32 C19QJN5 21.0 G V00 PK17B040 C2026 01 15.42901610 35 51.320+20 47 58.74 C19QJN5 21.1 G V00 PK17B040 C2026 01 15.43460510 35 51.313+20 48 02.27 C19QJN5 21.2 G V00 PK17B040 C2026 01 15.45796610 35 51.176+20 48 17.21 C19QJN5 21.5 G V00 PK17B040 C2026 01 15.45893510 35 51.162+20 48 17.86 C19QJN5 21.1 G V00 PK17B040 C2026 01 15.45990110 35 51.133+20 48 18.40 C19QJN5 21.1 G V00 PK17B040 C2026 01 15.46086910 35 51.144+20 48 19.01 C19QJN5 21.3 G V00 The following improved orbital elements, by S. Nakano, are from 106 observations 2016 to 2026. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.43 arc second. Residuals from the prediction in NK 4110 were +410" for Right Ascension and -35" for Declination with the delta-T correction = -0.35 day. The comet has passed 0.64 AU from Jupiter on 2020 Aug. 7 UT. Epoch = 2025 Nov. 21.0 TT T = 2025 Dec. 1.99884 +/- 0.00123 (m.e.) TT Peri. = 11.45891 +/- 0.00025 Node = 119.47118 +/- 0.00011 (2000.0) Inc. = 21.05516 +/- 0.00009 q = 2.8163958 +/- 0.0000053 AU e = 0.3551790 +/- 0.0000012 a = 4.3677172 +/- 0.0000118 AU n' = 0.10797477 +/- 0.00000044 P = 9.128 +/- 0.0000371 years T = 2017 Jan. 27.11712 TT Epoch = 2017 Feb. 16.0 TT Peri. = 16.19158 e = 0.3577224 Node = 121.54610 (2000.0) a = 4.3858259 AU Inc. = 20.18147 n'= 0.10730674 q = 2.8169179 AU P = 9.185 years The predicted orbit for the 2035 return is as follows: T = 2035 Jan. 11.35081 TT Epoch = 2034 Dec. 24.0 TT Peri. = 11.29444 e = 0.3541114 Node = 119.48033 (2000.0) a = 4.3719664 AU Inc. = 21.03741 n'= 0.10781740 q = 2.8238031 AU P = 9.141 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2016/ 170130 I52 0.7- 0.4- 170205 215 0.4- 0.2- 161222 F51 0.2+ 0.0 170130 I52 0.8- 0.1- 170205 215 0.2+ 0.2- 161222 F51 0.4+ 0.2- 170131 658 0.3+ 0.6+ 170205 F51 0.1+ 0.1- 161228 W84 0.1- 0.1+ 170131 658 0.3- 0.9+ 170205 F51 0.1- 0.0 2017/ 170131 658 0.0 1.1+ 170205 F51 0.1+ 0.1- 170121 F51 0.2+ 0.3- 170131 G96 0.8- 0.2+ 170205 F51 0.1+ 0.2- 170121 F51 0.0 0.0 170131 G96 0.1- 0.1- 170205 F51 0.0 0.3- 170121 F51 0.2+ 0.3+ 170131 G96 0.2+ 0.1+ 170214 F51 0.2+ 0.2- 170121 F51 0.1- 0.1+ 170131 G96 0.2+ 0.5+ 170227 F51 0.2+ 0.2- 170121 F51 0.2- 0.0 170201 658 0.0 0.0 170227 F51 0.2+ 0.0 170121 F51 0.3- 0.1+ 170201 658 0.5- 0.1+ 170227 F51 0.2+ 0.1- 170121 F51 0.2- 0.2+ 170201 658 0.2- 0.2+ 170227 F51 0.4+ 0.2- 170123 F51 0.0 0.0 170201 G96 0.3- 0.2+ 170305 W84 0.2+ 0.1- 170123 F51 0.1- 0.2- 170201 G96 1.1- 0.4+ 170313 F51 0.0 0.0 170123 F51 0.1+ 0.0 170201 G96 1.4- 0.2- 170313 F51 0.2- 0.2- 170123 F51 0.1- 0.1+ 170201 G96 1.5- 0.5- 170317 W84 0.0 0.1+ 170123 F51 0.2- 0.0 170201 691 1.5- 0.5+ 170328 F51 0.1+ 0.2+ 170124 F51 0.1- 0.2+ 170201 691 1.4- 0.4+ 170328 F51 0.3+ 0.2+ 170124 F51 0.2+ 0.1+ 170201 691 0.8- 0.6+ 170328 F51 0.3+ 0.0 170124 F51 0.0 0.1- 170201 691 0.1- 0.4+ 170328 F51 0.0 0.1+ 170124 F51 0.1+ 0.0 170201 691 0.7- 0.6+ 2026/ 170124 F51 0.1+ 0.0 170201 691 0.0 0.2+ 260113 V00 0.3- 0.2- 170124 F51 0.3- 0.1+ 170201 291 1.3- 0.2+ 260113 V00 0.2- 0.4- 170125 F51 0.1+ 0.0 170201 291 1.3- 0.1- 260113 V00 0.3- 0.3+ 170125 F51 0.4- 0.0 170201 291 0.8- 0.1+ 260113 V00 0.3- 0.3+ 170125 F51 0.2+ 0.1+ 170202 291 1.4- 0.5+ 260114 F51 0.2+ 0.1- 170128 F51 0.0 0.1+ 170202 291 1.1- 0.3- 260114 F51 0.5+ 0.2- 170128 F51 0.0 0.1- 170202 291 0.7- 0.2- 260114 F51 0.1+ 0.1- 170128 F51 0.2+ 0.1+ 170203 G40 1.8- 0.3+ 260115 V00 0.3- 0.2+ 170129 568 0.1+ 0.1- 170203 G40 0.6- 0.3- 260115 V00 0.0 0.3+ 170129 568 0.1+ 0.1- 170203 291 0.8- 0.1+ 260115 V00 0.0 0.1+ 170129 568 0.1+ 0.1- 170203 291 1.0- 0.1- 260115 V00 0.3+ 0.0 170130 H06 0.5- 0.4+ 170203 291 1.4- 0.3+ 260115 V00 0.3+ 0.0 170130 H06 0.3+ 0.3+ 170204 F51 0.2+ 0.1+ 260115 V00 0.2+ 0.0 170130 H06 0.3- 0.1- 170204 F51 0.3+ 0.0 260115 V00 0.2- 0.1- 170130 I52 0.9- 0.5- 170204 F51 0.2+ 0.1+ 260115 V00 0.1+ 0.1- 170130 I52 (2.2- 0.0 ) 170205 215 0.2- 0.2+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2026 Jan. 21