Nakano Note (Nakano wa Kangaeru noda) NK 5302 C/2024 B1 (Lemmon)
The following improved orbital elements, by S. Nakano, are from 80 observations 2023 Oct. 13 to 2024 Sept. 23. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.54 arc second. The comet has passed 2.65 AU from Jupiter on 2024 Mar. 20 UT. 2024 September observations show the residuals of +8" for Right Ascension and +4" for Declination from an orbit in NK 5184 (= CBET 5344). Epoch = 2024 Oct. 17.0 TT T = 2024 Oct. 7.70397 +/- 0.00079 (m.e.) TT Peri. = 66.21124 +/- 0.00057 Node = 79.18753 +/- 0.00009 (2000.0) Inc. = 70.90506 +/- 0.00014 q = 1.6336266 +/- 0.0000104 AU e = 1.0007937 +/- 0.0000133 1/a = -0.0004859 +/- 0.0000081 1/AU origin = +0.000058 (Q= 7) future = -0.000495 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2023/ 240116 G96 0.5- 0.4- 240814 U69 1.4+ 0.1- 231013 F51 0.1- 0.2- 240116 V06 0.2+ 1.2+ 240830 K77 1.0+ 1.1+ 231013 F51 0.1+ 0.4- 240116 V06 1.0+ 0.0 240830 K77 1.6- 0.9+ 231019 F52 0.1- 0.1+ 240116 V06 0.4- 0.2+ 240902 K77 0.3- 0.8+ 231019 F52 0.2- 0.1- 240116 V06 0.1+ 0.2+ 240902 K77 (3.0+ 0.0 ) 231019 F52 0.3+ 0.2+ 240117 H01 0.1- 0.2+ 240904 349 0.6+ 0.2+ 231023 F52 0.3- 0.1- 240117 H01 0.0 0.3+ 240904 349 1.0+ 0.6+ 231023 F52 0.2+ 0.1- 240117 H01 0.0 0.1+ 240907 G00 0.4+ 0.2+ 231120 F52 0.2- 0.2- 240117 H01 0.0 0.4+ 240907 G00 0.5+ 0.3- 231120 F52 0.2- 0.0 240129 106 0.6- 0.6- 240907 G00 1.1+ 0.1+ 231120 F52 0.3- 0.2- 240129 106 0.2- 0.9+ 240908 G00 0.2- 0.1- 231205 F51 0.3- 0.3- 240129 106 0.2+ 0.5- 240908 G00 0.3+ 0.5- 231205 F51 0.0 0.4- 240129 106 0.1- 0.9- 240908 G00 0.5+ 0.5- 231205 F51 0.0 0.0 240131 X07 0.4+ 0.3+ 240908 A98 0.6- 0.6+ 231209 F51 0.1- 0.4- 240131 X07 0.1+ 0.0 240908 A98 1.0+ 0.0 231209 F51 0.0 0.0 240131 L06 0.8+ 0.8+ 240908 A98 0.7+ 0.8+ 231209 F51 0.4- 0.1- 240131 L06 1.0+ 0.3+ 240908 A98 1.3+ 0.3- 231215 F51 0.0 0.2- 240131 L06 0.7+ 0.3- 240908 A98 (3.2+ 0.6+) 231215 F51 0.0 0.0 240201 204 0.4+ 0.4+ 240913 C23 (2.4- 1.7+) 231215 F51 0.1- 0.1+ 240201 204 0.4+ 0.7+ 240913 C23 1.0- 0.7+ 231215 F51 0.5- 0.0 240201 204 0.3+ 0.1- 240913 C23 0.5- 0.1+ 231224 F52 0.1- 0.9+ 240201 204 0.3+ 0.6+ 240913 P87 1.8- 0.4- 231224 F52 0.1+ 0.2- 240202 X03 0.4- 0.3- 240913 P87 0.5- 0.4- 2024/ 240202 X03 0.9- 1.0- 240913 P87 1.3- 0.2- 240103 F51 0.4- 0.2- 240202 X03 0.2+ 0.0 240923 L79 0.7+ 0.1+ 240103 F51 0.1+ 0.3+ 240202 X03 0.5+ 0.0 240923 L79 0.4+ 1.2- 240116 G96 0.3+ 0.4- 240211 Q11 0.2- 0.0 240923 L79 0.4- 0.3+ 240116 G96 0.5- 0.8- 240211 Q11 0.1- 0.0 240116 G96 0.4+ 0.5- 240814 U69 1.5+ 0.2- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2024 Oct. 8