Nakano Note (Nakano wa Kangaeru noda) NK 2018 C/1993 K1 (Shoemaker-Levy)

The following improved orbital elements, by S. Nakano, are from 41 observations 1993 Mar. 18 to 1996 Jan. 27. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The comet has passed 2.82 AU from Jupiter on 1993 Mar. 14 UT. The mean residual is +/- 0.90 arc second. Pre-discovery observations were found by M. Meyer. See the previous orbits on HICQ 1994 by Nakano, HICQ 1995 by B. G. Marsden and NK 1492. Epoch = 1994 Feb. 17.0 TT T = 1994 Feb. 1.94170 +/- 0.00328 (m.e.) TT Peri. = 232.44454 +/- 0.00038 Node = 30.32872 +/- 0.00007 (2000.0) Inc. = 67.76692 +/- 0.00006 q = 4.8492454 +/- 0.0000190 AU e = 1.0001945 +/- 0.0000282 1/a = -0.0000401 +/- 0.0000058 1/AU origin = +0.000027 (Q= 8) future = +0.000593 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 1993/ 930618 675 1.0- 0.2+ 941222 413 0.7- 0.7+ 930318 260 0.2+ 0.4- 930618 675 (3.7- 0.6-) 1995/ 930318 260 1.1+ 0.2+ 930720 474 1.7+ 1.1- 950112 413 0.3+ 0.0 930523 675 0.9- 2.0+ 930720 474 0.5+ 1.2- 950112 413 0.3+ 0.3+ 930523 675 0.2+ 2.0+ 930730 413 0.7+ 0.9- 950220 413 0.1+ 0.5+ 930524 675 1.1+ 0.6+ 930730 413 0.8+ 0.3- 950220 413 0.1- 0.6+ 930524 675 0.2- 1.8+ 930810 474 0.3- 0.9+ 950321 413 1.8+ 0.0 930525 691 0.1- 0.9- 930810 474 0.3+ 0.6+ 950321 413 1.7+ 0.0 930525 691 0.5- 0.7- 930815 474 1.2- 1.8+ 950322 413 0.7+ 0.3- 930525 691 0.4- 0.3- 930815 474 (0.8- 2.3+) 950322 413 1.3+ 0.3- 930525 413 0.9+ 0.4- 1994/ 950806 413 0.1+ 0.6- 930526 675 0.6+ 1.1- 940323 323 1.7- 0.3+ 950806 413 0.0 0.9- 930526 675 0.1+ 1.0- 940406 323 0.4- 0.5- 1996/ 930604 413 0.3+ 1.1- 940410 323 (2.8- 1.3+) 960109 413 0.7- 0.3+ 930611 372 1.8- 0.9- 940502 323 0.2+ 0.5- 960109 413 1.5- 1.1+ 930615 675 (1.1- 2.3-) 940506 323 0.1+ 0.3+ 960127 413 1.6- 0.9- 930615 675 (4.8- 0.8-) 941222 413 0.4- 1.5+ ( ) -------- Rejected Obs.

Associate of Central Bureau for Astronomical Telegrams Syuichi Nakano 2010 Dec. 5

Back to Nakano Note Page