Nakano Note (Nakano wa Kangaeru noda) NK 4627 C/2021 G3 (PANSTARRS)
The following improved orbital elements, by S. Nakano, are from 57 observations 2021 Feb. 9 to 2022 Jan. 31. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.34 arc second. 2022 observations show the residuals of -6" mainly for Right Ascension from an orbit in CBET 4990. Epoch = 2021 Nov. 2.0 TT T = 2021 Oct. 18.61784 +/- 0.00625 (m.e.) TT Peri. = 10.64940 +/- 0.00071 Node = 147.41844 +/- 0.00002 (2000.0) Inc. = 102.88420 +/- 0.00008 q = 5.1811918 +/- 0.0000161 AU e = 1.0011754 +/- 0.0000177 1/a = -0.0002269 +/- 0.0000034 1/AU origin = +0.000009 (Q= 8) future = +0.000016 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2021/ 210402 V06 0.3- 0.2+ 210512 291 0.5+ 0.0 210209 G96 0.0 0.1+ 210402 V06 0.5- 0.2- 210512 291 0.9+ 0.4+ 210209 G96 0.1+ 0.0 210403 V06 0.0 0.6- 210513 291 0.9- 0.4- 210209 G96 0.5- 0.3- 210403 V06 0.3+ 0.1+ 210513 291 0.4+ 0.6- 210320 V00 0.3- 0.1+ 210403 V06 0.2- 0.3- 210513 291 0.1+ 0.5- 210320 V00 0.1- 0.4- 210404 V06 0.1- 0.1- 2022/ 210320 V00 0.1+ 0.1- 210404 V06 0.4- 0.2+ 220104 G96 0.5- 0.6- 210320 V00 0.1+ 0.3+ 210404 V06 0.4- 0.1+ 220104 G96 0.1+ 0.1- 210401 F51 0.1- 0.1+ 210404 Q62 0.1+ 0.4+ 220104 G96 0.9+ 0.0 210401 F51 0.2- 0.1- 210404 Q62 0.2+ 0.1+ 220108 F52 0.0 0.1+ 210401 F51 0.2- 0.0 210406 568 0.3- 0.2+ 220108 F52 0.1+ 0.0 210402 807 0.3+ 0.3+ 210406 568 0.3- 0.1+ 220129 G96 0.0 0.8+ 210402 807 0.3+ 0.0 210406 568 0.4- 0.1+ 220129 G96 0.5- 0.2+ 210402 807 0.0 0.0 210411 291 0.3+ 0.2- 220129 G96 0.5- 0.4- 210402 H21 0.0 0.3+ 210411 291 0.0 0.3- 220129 G96 0.0 0.3+ 210402 H21 0.3+ 0.3+ 210411 291 0.0 0.3- 220131 G96 0.5- 0.0 210402 H21 0.1+ 0.4+ 210507 Y00 0.2+ 0.2+ 220131 G96 0.0 0.7- 210402 291 0.3+ 1.1- 210507 Y00 0.6+ 0.3+ 220131 G96 0.2- 0.1- 210402 291 0.7+ 0.1+ 210508 Y00 0.0 1.1+ 220131 G96 0.1- 0.2+ 210402 V06 0.8- 0.2+ 210512 291 0.3+ 0.1- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2022 Feb. 12