Nakano Note (Nakano wa Kangaeru noda) NK 4005 C/2017 F2 (PANSTARRS)
The following improved orbital elements, by S. Nakano, are from 58 observations 2017 Mar. 31 to 2018 Dec. 12. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.44 arc second. See the previous orbit in NK 3455, NK 3588 and NK 3753 (= HICQ 2019). Epoch = 2017 Nov. 23.0 TT T = 2017 Nov. 26.38639 +/- 0.00315 (m.e.) TT Peri. = 134.91707 +/- 0.00023 Node = 38.66822 +/- 0.00003 (2000.0) Inc. = 42.50768 +/- 0.00002 q = 6.9276562 +/- 0.0000098 AU e = 1.0053466 +/- 0.0000097 1/a = -0.0007718 +/- 0.0000014 1/AU origin = +0.000004 (Q= 8) future = -0.000328 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2017/ 170405 I52 0.2+ 0.1+ 2018/ 170331 F51 0.1+ 0.1+ 170406 291 0.5- 0.1+ 180215 U69 1.3- 1.6- 170331 F51 0.0 0.0 170406 291 0.3- 0.1+ 180215 U69 1.2- 1.3- 170331 F51 0.3+ 0.0 170414 H06 0.5- 0.3+ 180407 215 1.9- 1.7- 170401 568 0.1+ 0.0 170414 H06 0.5- 0.1+ 180407 215 1.0- 1.5- 170401 568 0.1+ 0.0 170414 H06 0.4- 0.4+ 180407 215 0.4- 1.4- 170401 568 0.2+ 0.0 170423 215 (3.7- 0.4+) 180509 G96 0.2- 0.1+ 170401 V37 0.2+ 0.4- 170423 215 (3.1- 0.0 ) 180509 G96 1.2- 0.3+ 170401 V37 0.3+ 0.2- 170423 215 (2.4- 0.5+) 180509 G96 1.0- 0.1- 170401 V37 0.3- 0.3- 170519 568 0.2+ 0.1+ 180509 G96 (2.0- 2.0-) 170401 V37 0.1- 0.4- 170519 568 0.1+ 0.1+ 180522 568 0.0 0.2+ 170403 926 1.3- 0.1+ 170523 U69 0.1- 0.2+ 180522 568 0.0 0.1+ 170403 926 0.1+ 0.3- 170523 U69 0.4- 0.5+ 180607 568 0.1+ 0.1+ 170403 926 0.0 0.7+ 170523 U69 0.6- 0.3+ 180607 568 0.1+ 0.1+ 170404 I52 1.2- 1.4- 170526 G96 0.6- 0.0 180607 568 0.1+ 0.1+ 170404 I52 1.2- 0.2- 170526 G96 0.5- 0.1+ 180607 568 0.1+ 0.1+ 170404 I52 0.7- 0.0 170526 G96 0.6- 0.1- 180607 568 0.1+ 0.1+ 170404 I52 0.6- 0.4- 170526 G96 0.9- 0.1- 180607 568 0.0 0.1+ 170404 F51 0.1+ 0.0 170719 568 0.0 0.1+ 181212 568 0.1+ 0.0 170404 F51 0.2- 0.3- 170719 568 0.1+ 0.0 181212 568 0.1- 0.2- 170404 F51 0.2- 0.0 171123 568 0.1+ 0.0 170405 I52 0.1- 0.1+ 171123 568 0.2+ 0.1- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2019 Dec. 29