Nakano Note (Nakano wa Kangaeru noda) NK 5194 P/PANSTARRS (2016 J1-A = 2020 Y6-A)
The following improved orbital elements, by S. Nakano, are from 135 observations 2004 to 2022, including planetary perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas, Vesta, and non-gravitational effect of style II. The mean residual is +/- 0.38 arc second. 2010 April observations are not fitting with Nucleus A. See in NK 4814, following comments on there. Residuals for recovery observations on 2022 Mar. 13 were +48" for Right Ascension and +6" for Declination from the prediction in NK 3987 with the delta-T correction = -0.05 day. Identical object 4L07621 in 2004 were found from a linked orbit 2016-2022, which residuals were only +6" mainly for Right Ascension with delta-T correction = -0.007 day. See the previous orbits in NK 3233, NK 3987, NK 4814 and also NK 5195 (CBET 5367; same orbit) for nucleus B. Epoch = 2022 Mar. 2.0 TT T = 2022 Feb. 20.66426 +/- 0.00070 (m.e.) TT Peri. = 46.98806 +/- 0.00019 Node = 199.81128 +/- 0.00002 (2000.0) Inc. = 14.32870 +/- 0.00001 q = 2.4496763 +/- 0.0000003 AU e = 0.2277366 +/- 0.0000001 a = 3.1720735 +/- 0.0000007 AU n' = 0.17445733 +/- 0.00000006 P = 5.650 +/- 0.0000018 years A1 = -1.244 +/- 0.127 A2 = -0.08157 +/- 0.00393 T = 2005 Mar. 15.86557 TT Epoch = 2005 Mar. 11.0 TT Peri. = 45.59805 e = 0.2359634 Node = 200.37541 (2000.0) a = 3.1612896 AU Inc. = 14.35626 n'= 0.17535076 q = 2.4153410 AU P = 5.621 years T = 2010 Nov. 1.08713 TT Epoch = 2010 Nov. 20.0 TT Peri. = 45.87088 e = 0.2348393 Node = 200.33184 (2000.0) a = 3.1621815 AU Inc. = 14.35335 n'= 0.17527658 q = 2.4195771 AU P = 5.623 years T = 2016 June 24.21905 TT Epoch = 2016 June 21.0 TT Peri. = 46.58721 e = 0.2282575 Node = 199.85614 (2000.0) a = 3.1720411 AU Inc. = 14.33013 n'= 0.17446000 q = 2.4479989 AU P = 5.649 years The predicted orbit for the 2027 return is as follows: T = 2027 Nov. 14.76910 TT Epoch = 2027 Nov. 11.0 TT Peri. = 50.40485 e = 0.2209317 Node = 198.73356 (2000.0) a = 3.1881796 AU Inc. = 14.19743 n'= 0.17313700 q = 2.4838098 AU P = 5.693 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2004/ 160506 H06 0.1- 0.9+ 160804 568 0.1+ 0.0 040620 703 0.3- 0.2+ 160506 I52 0.9+ 0.5+ 2020/ 040620 703 0.6+ 0.9- 160506 568 0.1- 0.1+ 201224 568 0.1+ 0.1+ 040620 703 0.6- 0.2- 160506 568 0.1- 0.1+ 201224 568 0.1+ 0.0 040620 703 0.4- 0.4- 160506 568 0.1- 0.1+ 2021/ 2010/ 160507 568 0.0 0.1+ 210217 568 0.1- 0.0 100403 F51 (7.8+ 1.1-)a 160507 568 0.1- 0.1+ 210217 568 0.1- 0.0 100403 F51 (8.3+ 1.3-)a 160507 568 0.1- 0.1+ 210217 568 0.1- 0.1+ 100412 F51 (7.8+ 0.7-)a 160508 H01 0.3- 0.0 210411 568 0.3+ 0.0 100412 F51 (8.0+ 0.9-)a 160508 H01 0.2- 0.0 210411 568 0.1+ 0.0 100417 F51 (8.1+ 1.1-)a 160508 H01 0.1- 0.2- 210414 568 0.1+ 0.1+ 100417 F51 (7.8+ 0.7-)a 160508 H01 0.4- 0.3+ 210414 568 0.0 0.2+ 100621 C51 0.2+ 0.1+ a 160508 H01 0.2- 0.0 210414 568 0.0 0.1+ 100621 C51 (6.0+ 0.3-)a 160508 H01 0.4- 0.1- 210414 568 0.1+ 0.2+ 100622 C51 1.0+ 0.4+ a 160508 691 0.3- 0.0 210414 568 0.0 0.2+ 100622 C51 (2.7+ 0.1-)a 160508 691 0.0 0.1+ 210414 568 0.0 0.1+ 100622 C51 (2.7+ 0.4-)a 160508 691 1.8- 0.9+ 210415 568 0.2- 0.1+ 100622 C51 1.6+ 1.1+ a 160511 568 0.1- 0.1- 210415 568 0.3- 0.0 100622 C51 (3.5+ 1.1+)a 160511 568 0.0 0.0 210417 568 0.0 0.0 100622 C51 (4.4+ 1.5+)a 160511 568 0.2- 0.0 210417 568 0.1+ 0.1- 100622 C51 1.0+ 0.0 a 160511 568 0.1- 0.1- 210417 568 0.1- 0.2+ 100622 C51 2.4+ 0.2- a 160515 Z18 0.0 0.1- 210516 568 0.1+ 0.1- 100622 C51 (2.9+ 0.8-)a 160515 Z18 0.1- 0.0 210516 568 0.0 0.1+ 100622 C51 (5.8+ 1.4-)a 160515 Z18 0.1- 0.1- 210517 568 0.0 0.1+ 100623 C51 2.3+ 1.3- a 160515 Z18 0.0 0.1- 210517 568 0.0 0.0 100623 C51 1.3+ 0.2+ a 160515 Z18 0.0 0.1- 210517 568 0.0 0.1+ 2011/ 160529 Z18 0.0 0.1- 2022/ 110818 F51 0.1- 0.2+ a 160529 Z18 0.0 0.1- 220313 568 0.2+ 0.1+ 110818 F51 0.2+ 0.3+ a 160529 Z18 0.0 0.1- 220313 568 0.2+ 0.1+ 110818 F51 0.1+ 0.0 a 160529 Z18 0.0 0.1- 220408 568 0.1+ 0.1+ 110819 F51 0.3+ 0.7+ a 160529 Z18 0.0 0.1- 220408 568 0.1+ 0.1+ 110819 F51 0.3+ 0.5+ a 160606 695 0.2+ 0.3- 220408 568 0.1+ 0.2+ 110819 F51 0.0 0.5+ a 160607 695 0.2+ 0.4- 220408 568 0.0 0.1+ 2016/ 160608 G96 0.6+ 0.5- 220425 568 0.1+ 0.1+ 160304 F51 0.2- 0.3+ 160608 G96 0.5+ 0.6+ 220425 568 0.1+ 0.2+ 160304 F51 0.1+ 0.3+ 160608 G96 0.2+ 1.0+ 220425 568 0.1+ 0.1+ 160403 F51 0.2- 0.0 160608 G96 0.1+ 0.4+ 220425 568 0.1+ 0.1+ 160403 F51 0.4- 0.0 160609 695 0.2- 0.1- 220425 568 0.1+ 0.1+ 160403 F51 0.3- 0.1- 160611 695 0.1- 0.2- 220425 568 0.1+ 0.1+ 160414 F51 0.5- 0.2- 160612 695 0.0 0.1- 220425 568 0.1+ 0.1+ 160414 F51 0.3- 0.1- 160731 Z18 0.1+ 0.1- 220425 568 0.1+ 0.1+ 160414 F51 0.0 0.2- 160731 Z18 0.1+ 0.1- 220425 568 0.1+ 0.1+ 160416 F51 0.3- 0.3- 160731 Z18 0.1+ 0.0 220425 568 0.1+ 0.1+ 160416 F51 0.3- 0.2- 160731 Z18 0.1+ 0.1- 220425 568 0.1+ 0.1+ 160416 F51 0.1- 0.1- 160731 Z18 0.1+ 0.1- 220619 568 0.2- 0.1- 160505 F51 0.1- 0.0 160804 568 0.0 0.0 220619 568 0.2- 0.0 160505 F51 0.1+ 0.1- 160804 568 0.0 0.0 220619 568 0.1- 0.0 160505 F51 0.0 0.1+ 160804 568 0.1+ 0.0 220619 568 0.1- 0.0 160505 F51 0.0 0.1- 160804 568 0.1+ 0.0 220619 568 0.2- 0.0 160506 I52 1.5+ 0.5- 160804 568 0.1+ 0.0 220619 568 0.2- 0.0 160506 H06 0.4+ 0.4- 160804 568 0.0 0.0 220619 568 0.2- 0.0 160506 H06 0.0 0.4+ 160804 568 0.1+ 0.0 ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2024 Mar. 13