Nakano Note (Nakano wa Kangaeru noda) NK 4493 A/2021 G2
The following improved orbital elements, by S. Nakano, are from 85 observations 2020 Nov. 3 to 2021 June 1. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.48 arc second. See an orbit in CBET 4988 (= same orbit). Epoch = 2024 Sept. 7.0 TT T = 2024 Sept. 9.40929 +/- 0.17852 (m.e.) TT Peri. = 343.28042 +/- 0.00095 Node = 221.09437 +/- 0.00039 (2000.0) Inc. = 48.47311 +/- 0.00010 q = 4.9829094 +/- 0.0005415 AU e = 1.0000367 +/- 0.0002200 1/a = -0.0000074 +/- 0.0000441 1/AU origin = +0.000068 (Q= 7) future = -0.000217 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2020/ 210415 474 0.1- 0.1- 210511 L81 0.0 0.1- 201103 F52 0.1+ 0.2+ 210417 X31 0.4- 0.1+ 210511 L81 0.0 0.1- 201103 F52 0.0 0.0 210417 X31 0.3- 0.4+ 210512 Y00 0.1- 1.1- 201103 F52 0.0 0.2- 210419 X31 0.3+ 0.1+ 210512 Y00 0.2+ 0.2+ 201127 G96 0.2- 0.1+ 210419 X31 0.3+ 0.4- 210512 Y00 0.5+ 0.1- 201127 G96 0.1+ 1.4+ 210420 X31 0.5+ 0.6- 210512 Y00 0.6+ 0.1- 201127 G96 0.1+ 0.3+ 210420 X31 0.0 0.8- 210514 E94 0.4+ 0.1- 201127 G96 0.2+ 0.3+ 210421 X02 0.1+ 0.0 210514 E94 0.7- 0.5- 201212 G96 0.0 0.3- 210421 X02 0.0 0.1- 210514 E94 0.5- 0.3+ 201212 G96 0.3+ 0.3+ 210421 E94 0.6- 0.0 210514 E94 0.1+ 0.7+ 201212 G96 0.0 0.1+ 210421 E94 1.0+ 1.0- 210516 E94 1.4+ 0.8+ 201212 G96 0.0 0.1+ 210421 E94 0.6+ 0.1+ 210516 E94 0.4- 0.1- 201229 F52 0.2- 0.2- 210427 E23 1.1+ 0.1- 210516 E94 0.2+ 0.6+ 2021/ 210427 E23 0.3- 0.7+ 210518 E94 1.0+ 0.2+ 210411 T08 0.0 0.2+ 210427 E23 0.7- 0.2+ 210518 E94 1.6- 0.4+ 210411 T08 0.7+ 0.1- 210429 E94 0.8- 0.4- 210518 E94 1.5- 1.3+ 210411 T08 1.3+ 1.0- 210429 E94 0.9- 0.5+ 210518 Y00 0.7- 0.5- 210411 T08 0.3+ 0.1- 210429 E94 0.7- 0.8+ 210518 Y00 0.1- 0.6+ 210411 807 0.1+ 0.1- 210430 E23 0.1- 0.7- 210518 Y00 0.6+ 0.4- 210411 807 0.1+ 0.1+ 210430 E23 0.3- 0.5+ 210519 E94 0.4+ 0.7- 210412 807 0.3- 0.1- 210430 E23 0.8+ 0.3+ 210519 E94 0.4+ 0.2+ 210412 807 0.3- 0.0 210504 Y00 0.0 0.3- 210519 E94 1.0- 0.6+ 210413 E23 0.5- 0.4- 210504 Y00 0.1+ 0.0 210519 E94 1.0- 0.0 210413 E23 0.1+ 0.1- 210504 Y00 0.3+ 0.1+ 210526 E10 0.0 0.4- 210413 E23 0.2- 0.4- 210507 Y00 0.1+ 0.2+ 210526 E10 0.0 0.1- 210414 Q62 0.3- 0.3- 210507 Y00 0.1- 0.0 210526 E10 0.2+ 0.1- 210414 Q62 0.2+ 0.1- 210507 Y00 0.1+ 0.2+ 210601 Y00 0.3+ 0.5+ 210415 474 0.9+ 0.2+ 210507 Y00 0.2+ 0.0 210601 Y00 0.3- 0.3+ 210415 474 0.0 0.1- 210511 L81 0.0 0.2- 210601 Y00 0.2+ 0.2+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2021 June 24