Nakano Note (Nakano wa Kangaeru noda) NK 4179 C/2020 K3 (Leonard)

The following improved orbital elements, by S. Nakano, are from 201 observations 2019 Oct. 25 to 2020 Aug. 1. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.60 arc second. See the previous orbits in CBET 4782 and NK 4154. Epoch = 2020 May 31.0 TT T = 2020 May 30.12192 +/- 0.00007 (m.e.) TT Peri. = 62.69759 +/- 0.00005 Node = 27.92771 +/- 0.00002 (2000.0) Inc. = 128.71537 +/- 0.00002 q = 1.5934451 +/- 0.0000005 AU e = 0.9924304 +/- 0.0000033 1/a = +0.0047505 +/- 0.0000021 1/AU origin = +0.005032 (Q= 8) future = +0.004749 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2019/ 200525 204 0.6- 0.5+ 200629 H21 0.3+ 0.1- 191025 F52 0.2- 0.2+ 200525 Z99 0.8- 0.5+ 200629 H21 0.6+ 0.1- 191025 F52 0.6+ 0.4+ 200525 204 0.6- 0.4- 200629 H21 0.3+ 0.1+ 191025 F52 0.3+ 0.1- 200525 J95 0.7- 0.0 200629 U55 (8.1- 4.7+) 191025 F52 0.7- 0.5+ 200525 186 (0.8- 3.6-) 200629 H21 0.6+ 0.1+ 191121 F51 0.4- 0.1- 200525 186 (1.4+ 2.9-) 200629 H21 0.5+ 0.3+ 191121 F51 0.1+ 0.3- 200525 186 (1.4+ 4.2-) 200630 K87 (1.2- 2.2-) 191121 F51 0.0 0.1+ 200525 186 (0.3+ 3.3-) 200630 K87 (0.7- 5.6-) 191121 F51 0.4+ 0.3- 200527 A71 0.9- 0.3- 200630 G40 0.2+ 0.4+ 191121 F51 0.1- 0.1+ 200527 215 1.0- 0.0 200630 G40 0.0 0.1+ 191121 F51 0.3- 0.0 200527 215 1.2- 0.1- 200630 T08 0.7+ 0.2- 191121 F51 0.2+ 0.6- 200527 215 0.9- 0.0 200630 T08 0.2- 0.0 191128 F51 0.3- 0.1+ 200527 A71 1.6- 0.1- 200630 T08 0.1+ 0.7- 191128 F51 0.2+ 0.1- 200527 A71 0.4- 0.1- 200630 T08 0.3+ 1.3- 191229 F52 0.4+ 0.3+ 200527 Z84 0.2- 0.1- 200705 L27 0.5- 0.3+ 191229 F52 0.7+ 0.3+ 200527 Z84 0.1- 0.3- 200705 L27 0.0 0.5+ 191229 F52 1.1+ 0.5+ 200527 Z84 0.1+ 0.0 200707 C51 (2.3+ 0.9-) 2020/ 200527 Z84 0.1+ 0.1- 200707 C51 0.3+ 0.7- 200522 703 1.6- 0.2- 200527 J22 0.7+ 0.2- 200707 C51 (0.6- 11.1+) 200522 703 0.5- 0.4- 200527 J22 (3.0- 1.7-) 200707 C51 (0.5- 16.1-) 200522 703 0.4+ 0.6+ 200527 J22 (3.1- 0.2+) 200707 C51 (1.0- 14.4-) 200522 703 1.4- 1.0+ 200528 Z84 0.6- 0.1+ 200707 C51 1.5+ 0.5- 200523 L01 0.0 0.1- 200528 Z84 0.3- 0.1+ 200707 C51 0.6+ 1.7+ 200523 L01 0.2- 0.1- 200528 Z84 0.7- 0.2+ 200707 C95 (3.5+ 2.5-) 200523 L01 0.3+ 0.1- 200528 568 0.3+ 0.0 200707 C95 0.4- 0.8- 200523 L01 0.6+ 0.2+ 200528 568 0.3+ 0.1- 200708 C51 0.6+ 0.0 200523 L01 0.2- 1.5+ 200528 568 0.3+ 0.0 200708 T08 0.1- 0.2- 200523 J95 0.5+ 0.9- 200528 Q11 0.6- 0.0 200708 T08 0.4- 0.3- 200523 J95 0.2- 0.2+ 200528 Q11 0.7- 0.0 200708 T08 0.4- 0.6- 200523 G40 (3.8- 0.9-) 200528 Q11 0.3- 0.0 200708 T08 0.3- 0.1+ 200523 G40 (3.8+ 0.7-) 200529 Z10 0.2+ 0.1+ 200709 C95 0.4- 0.1+ 200523 G40 (7.3+ 11.6-) 200529 Z10 (2.1+ 1.2-) 200709 C95 0.7+ 0.4+ 200523 G40 1.6- 0.4- 200529 H06 0.1- 0.2+ 200713 F51 0.3+ 0.7+ 200523 G40 (0.3- 6.4-) 200529 H06 0.4- 0.0 200713 F51 0.3+ 0.6+ 200523 H06 0.7- 0.3+ 200531 Z84 0.1- 0.1- 200713 F51 0.4- 0.5+ 200523 H06 0.4- 0.7- 200531 Z84 0.4- 0.2- 200713 F51 0.5- 0.1+ 200523 H06 0.5- 0.1- 200531 Z84 0.3- 0.4- 200714 L27 0.4+ 0.4- 200523 703 1.1- 0.7- 200601 H06 0.4- 0.5- 200714 L27 0.5+ 0.6- 200523 H06 0.5- 0.2- 200601 H06 0.4- 0.4- 200714 L27 0.6+ 0.3+ 200523 H06 0.7- 0.2- 200611 H06 0.3- 0.2+ 200717 K87 0.1- 0.5+ 200523 703 1.5- 0.0 200611 H06 0.5- 0.1+ 200717 K87 0.2+ 0.7+ 200523 703 1.7- 0.5- 200615 Q11 0.6- 0.3- 200717 K87 0.1- 0.4+ 200523 703 1.9- 0.5- 200615 Q11 0.6- 0.2- 200718 T05 0.0 0.4+ 200523 U71 0.6- 1.9- 200615 Q11 0.6- 0.3- 200718 T05 0.7+ 1.4- 200523 U71 0.4+ 0.6+ 200616 349 1.0- 1.6- 200718 T05 0.8+ 0.2+ 200523 U71 0.4+ 0.7- 200616 349 0.5- 0.8- 200718 T05 0.4+ 0.2+ 200523 U71 0.5- 1.6- 200616 349 0.0 1.0- 200718 K87 0.7- 0.3+ 200523 U71 1.2- 0.6- 200617 568 0.6+ 0.0 200718 K87 0.7- 0.5+ 200523 F65 0.1+ 0.6+ 200617 568 0.6+ 0.0 200718 K87 0.4+ 0.0 200523 F65 0.2- 0.5+ 200618 K77 0.2- 0.6- 200719 K87 0.9- 1.0- 200523 F65 0.0 0.5+ 200618 K77 (3.9- 6.1+) 200719 K87 0.3- 0.3- 200523 F65 0.2- 0.4+ 200620 T05 0.3+ 0.1- 200719 K87 0.3- 0.6+ 200523 F65 0.2- 0.5+ 200620 T05 0.0 0.1+ 200720 T08 0.2+ 0.7- 200523 F65 0.0 0.4+ 200620 T05 1.0- 0.4- 200720 T08 0.0 0.0 200523 F65 0.2- 0.5+ 200620 T05 1.3- 1.2- 200720 T08 0.6- 0.5+ 200523 F65 0.5- 0.4+ 200622 A71 0.3+ 0.5+ 200720 T08 1.0+ 0.1- 200523 F65 0.1+ 0.5+ 200622 A71 0.2- 0.6+ 200720 B96 0.8- 0.4- 200523 P87 (0.3+ 2.9-) 200626 K87 1.9- 0.2- 200720 B96 (1.8- 2.2-) 200523 P87 (0.6- 2.2-) 200626 K87 0.5- 0.2+ 200720 B96 0.4- 1.9- 200523 N88 0.2+ 0.8+ 200626 K87 1.8- 1.0- 200725 213 1.3+ 0.2- 200523 N88 0.6- 0.5- 200628 T05 0.2- 0.1+ 200725 213 1.3+ 0.3- 200523 N88 0.0 0.3- 200628 T05 0.8- 0.1+ 200725 213 1.3+ 0.6- 200523 N88 0.7- 0.7+ 200628 T05 0.3- 0.3+ 200726 703 1.1+ 0.8- 200523 N88 0.6- 0.5+ 200628 T05 0.3+ 0.3- 200726 703 0.9+ 0.2+ 200524 L02 1.3- 0.8+ 200628 L01 0.4+ 0.2+ 200726 703 1.3+ 0.5- 200524 L06 1.4- 0.3- 200628 L01 0.8+ 0.3+ 200729 F51 0.4- 0.1+ 200524 L02 0.6- 1.0- 200628 104 0.1- 0.3- 200729 F51 0.2- 0.5- 200524 L06 1.4- 0.4- 200628 104 0.6- 0.3- 200729 F51 0.0 0.4+ 200524 L06 0.7- 0.4+ 200628 L01 0.0 0.0 200730 B96 (8.3+ 5.6-) 200524 I93 1.2- 0.1- 200628 L01 0.2+ 0.1- 200730 B96 0.5- 0.3+ 200524 I93 0.0 0.2- 200628 L01 1.1+ 0.1- 200730 B96 (0.8- 3.0-) 200524 I93 1.0- 0.1- 200628 104 0.5- 0.4- 200801 F51 0.1- 0.4+ 200525 J95 0.1- 0.1+ 200628 L07 0.3+ 0.1+ 200801 F51 0.2- 0.3+ 200525 Z99 0.5- 1.0+ 200628 L07 0.1+ 0.2+ 200801 F51 0.3- 0.4+ 200525 204 0.5- 0.2- 200629 G40 0.3- 0.0 200801 F51 0.6- 0.0 200525 J95 0.5- 0.2+ 200629 G40 0.1+ 0.6- 200525 Z99 0.7- 0.7+ 200629 U55 (6.7- 5.3+) ( ) -------- Rejected Obs.

Associate of the CBAT Syuichi Nakano 2020 Aug. 11

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