Nakano Note (Nakano wa Kangaeru noda) NK 5063 C/2023 H2 (Lemmon)
The following improved orbital elements, by S. Nakano, are from 94 observations 2023 Mar. 26 to Aug. 5. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.46 arc second. The comet will pass 0.19 AU from the Earth on 2023 Nov. 11 and also 3.99 AU from Jupiter on 2023 Nov. 28 UT. See an orbit in CBET 5264. Epoch = 2023 Oct. 23.0 TT T = 2023 Oct. 29.19139 +/- 0.00231 (m.e.) TT Peri. = 150.64888 +/- 0.00139 Node = 217.04420 +/- 0.00076 (2000.0) Inc. = 113.75370 +/- 0.00090 q = 0.8944284 +/- 0.0000429 AU e = 0.9963492 +/- 0.0000071 1/a = +0.0040817 +/- 0.0000079 1/AU origin = +0.004492 (Q= 7) future = +0.004350 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2023/ 230425 658 0.7+ 0.4- 230519 W62 0.0 0.2- 230326 F51 0.2+ 0.5+ 230425 658 0.4+ 0.1+ 230519 W62 0.5- 0.1- 230326 F51 0.0 0.2+ 230426 U94 0.7+ 0.2- 230519 B72 0.3- 0.2+ 230326 F51 0.1- 0.0 230426 U94 0.2+ 0.3- 230519 B72 0.4+ 0.3+ 230418 F52 0.1- 0.0 230426 U94 0.3+ 0.4- 230521 G00 0.2- 0.8- 230418 F52 0.4- 0.1- 230427 673 0.2- 0.1- 230521 G00 0.2- 0.1- 230418 F52 0.4- 0.1- 230427 673 0.3+ 0.3+ 230522 L06 0.5- 0.8- 230418 F52 0.0 0.1+ 230428 L01 0.3- 0.1+ 230522 L06 0.2- 0.4- 230423 G96 0.1- 0.1- 230428 L01 0.4- 0.2+ 230524 Q11 0.2- 0.2+ 230423 G96 1.0- 0.1- 230428 L01 0.8+ 0.2+ 230524 Q11 0.1- 0.1+ 230423 G96 0.1- 0.2- 230428 L01 0.3+ 0.1+ 230524 Q11 0.2- 0.1+ 230423 G96 0.4+ 0.4+ 230428 L01 0.1+ 0.1+ 230606 215 0.4+ 0.5+ 230423 G96 0.1+ 0.1- 230506 695 0.2- 0.2+ 230606 215 1.1+ 1.2- 230423 G96 0.1- 0.1+ 230506 695 0.2- 0.1+ 230606 215 1.5+ 1.4- 230423 G96 0.2+ 0.3- 230506 695 0.5- 0.1+ 230611 G00 0.1+ 0.3+ 230423 I52 1.0+ 0.2- 230509 G00 0.6- 1.1+ 230611 G00 1.0+ 0.2+ 230423 I52 0.4+ 0.2- 230509 G00 0.3- 1.6+ 230611 G00 0.3+ 0.1+ 230424 I52 0.1+ 0.3+ 230509 G00 0.2- 0.3+ 230613 Z10 0.7+ 0.1- 230424 I52 0.5- 0.0 230511 W62 0.1- 0.3+ 230613 Z10 (2.7+ 2.2-) 230424 I52 0.9- 0.6- 230511 W62 0.0 0.4+ 230616 Q11 0.3+ 0.7+ 230424 I52 0.4+ 0.4- 230511 W62 0.0 0.4+ 230616 Q11 0.2+ 0.5+ 230424 H21 0.3- 0.2- 230513 950 0.5- 0.7+ 230616 Q11 0.2+ 0.6+ 230424 H21 0.3- 0.3- 230513 950 0.2- 0.5+ 230628 G96 0.6- 0.3+ 230424 H21 0.4- 0.0 230513 950 0.2+ 0.2- 230628 G96 1.1- 0.1- 230424 G96 0.0 0.5- 230515 A77 0.3+ 0.7+ 230628 G96 1.0- 0.1- 230424 G96 0.3- 0.2+ 230515 A77 0.2- 0.4- 230628 G96 1.3- 0.2+ 230424 G96 0.0 0.5- 230515 A77 0.5- 0.1- 230716 Q11 0.5+ 0.1- 230424 G96 0.4+ 0.2+ 230516 204 0.4+ 0.1- 230716 Q11 0.6+ 0.0 230425 W62 0.2+ 0.0 230518 H36 0.5- 0.9- 230716 Q11 0.7+ 0.0 230425 W62 0.1+ 0.4- 230518 H36 0.0 0.8- 230805 U94 1.0- 0.3- 230425 W62 0.2+ 0.1- 230518 H36 0.4+ 0.2+ 230805 U94 0.5+ 0.6- 230425 658 0.6+ 0.0 230519 W62 0.4- 0.1+ 230805 U94 0.0 0.6+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2023 Aug. 16