Nakano Note (Nakano wa Kangaeru noda) NK 3187 149P/Mueller 4
The following improved orbital elements, by S. Nakano, are from 245 observations 1992 to 2010. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.72 arc second. The comet will pass 0.097 AU from Jupiter on 2021 July 28 UT. See the previous orbits in NK 583 (= MPC 31663) and NK 771R (= HICQ 2009, 2014). Epoch = 2010 Feb. 13.0 TT T = 2010 Feb. 19.20297 +/- 0.00491 (m.e.) TT Peri. = 43.76590 +/- 0.00141 Node = 145.26585 +/- 0.00012 (2000.0) Inc. = 29.73489 +/- 0.00004 q = 2.6509179 +/- 0.0000064 AU e = 0.3884986 +/- 0.0000015 a = 4.3350973 +/- 0.0000035 AU n' = 0.10919577 +/- 0.00000013 P = 9.026 +/- 0.0000108 years T = 1992 Feb. 16.11558 TT Epoch = 1992 Feb. 28.0 TT Peri. = 43.52294 e = 0.3894041 Node = 145.42869 (2000.0) a = 4.3182281 AU Inc. = 29.80276 n'= 0.10983625 q = 2.6366922 AU P = 8.973 years T = 2001 Feb. 7.84440 TT Epoch = 2001 Feb. 20.0 TT Peri. = 43.60562 e = 0.3886009 Node = 145.36861 (2000.0) a = 4.3288983 AU Inc. = 29.74881 n'= 0.10943040 q = 2.6466844 AU P = 9.007 years The predicted orbit for the 2019 return is as follows: T = 2019 Feb. 16.98442 TT Epoch = 2019 Feb. 6.0 TT Peri. = 43.79416 e = 0.3898720 Node = 145.23407 (2000.0) a = 4.3163625 AU Inc. = 29.77096 n'= 0.10990747 q = 2.6335338 AU P = 8.968 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 1992/ 010516 704 0.6- 1.1+ 100406 160 0.0 0.5+ 920409 675 (2.0+ 3.4+) 010516 704 0.2- 1.3+ 100406 160 0.2- 0.7+ 920411 675 (1.1+ 3.2+) 010516 704 0.2+ 0.4+ 100406 J24 0.1- 1.7+ 920412 413 0.1- 1.3- 010516 704 0.8- 1.0+ 100406 J24 0.6- 1.2+ 920414 372 0.3+ 1.0- 010516 360 1.1- 0.6+ 100406 J24 0.7- 1.7+ 920414 372 (0.6+ 2.7-) 010516 360 0.8- 0.5+ 100409 B09 0.6- 1.6- 920420 372 0.7- 1.2- 010523 682 0.1+ 0.6- 100409 B09 (2.1- 2.4-) 920420 372 (0.9+ 3.6-) 010523 682 0.1- 0.1- 100409 B42 0.2+ 0.9+ 920422 372 0.7- 0.2+ 010523 682 0.4- 0.1- 100409 B42 0.1+ 0.4+ 920425 589 0.6- 2.0- 010523 682 0.7+ 0.3- 100409 B42 0.0 0.1+ 920425 589 (1.1+ 2.9-) 010526 699 0.2+ 1.1- 100410 585 0.2+ 0.5+ 920425 589 0.4+ 1.9- 010526 699 0.5+ 1.3- 100410 585 0.5- 0.4+ 920425 589 (0.7+ 2.5-) 010526 699 0.1+ 0.9- 100410 585 0.7- 0.9+ 920425 589 0.9+ 1.1- 010526 699 0.1+ 0.3- 100410 160 0.7+ 1.5- 920427 261 0.3- 0.3+ 010526 170 (1.1- 2.9-) 100410 160 (2.2+ 1.7-) 920427 261 1.7+ 0.0 010526 170 0.1+ 1.9- 100410 J01 0.3- 0.3+ 920429 801 0.4+ 1.1- 010529 170 0.2- 0.7- 100410 J01 0.3- 0.1- 920429 801 0.8+ 0.7- 010529 170 0.3- 0.9- 100410 J01 0.5- 0.1- 920503 372 1.2- 1.2- 010608 170 1.1+ 0.3- 100414 A77 0.4+ 0.1- 920503 589 1.4+ 1.4- 010617 699 0.2- 0.3- 100414 A77 0.6+ 0.3- 920503 589 0.9- 1.5- 010617 699 0.6+ 0.6- 100414 A77 1.6+ 0.7+ 920503 589 0.8+ 1.2- 010617 699 0.1- 0.4- 100417 J24 0.6- 0.2+ 920503 589 1.7+ 1.0- 010617 699 0.6+ 0.5- 100417 J24 0.4+ 0.1+ 920503 589 1.1+ 0.7- 010618 170 0.7- 0.7- 100417 J24 0.7+ 0.9+ 920506 801 0.9+ 0.3+ 010618 170 (0.1- 2.5-) 100417 J24 0.3- 0.3+ 920506 801 1.2+ 0.9- 010628 170 0.0 1.8+ 100417 900 1.4+ 0.2+ 920510 372 0.8- 0.4- 2010/ 100417 900 0.1+ 0.2- 920524 372 (3.4+ 3.1+) 100116 H06 1.1- 1.5+ 100419 160 1.0+ 0.1- 920525 372 (2.3- 2.2-) 100116 H06 1.5- 1.0+ 100419 160 0.9+ 0.3- 920526 372 0.8- 0.5- 100212 H06 0.5+ 0.1+ 100419 160 0.9+ 0.4- 920601 372 1.3- 1.6- 100212 H06 0.7+ 0.1+ 100421 850 0.8- 0.7- 920603 801 (0.5+ 2.2+) 100213 H06 0.2- 0.7+ 100421 850 1.0- 1.0- 920603 801 0.9+ 1.9+ 100213 H06 0.4+ 0.5+ 100421 850 (0.8+ 2.2-) 920603 372 0.9- 0.5+ 100213 H06 1.0+ 0.1+ 100423 585 0.2- 0.3- 920629 801 1.3+ 0.2- 100215 703 0.5- 1.8- 100423 585 0.6+ 0.5- 920629 801 1.4+ 0.1- 100215 703 1.9+ 0.7- 100423 585 0.4+ 0.3+ 920702 801 1.0+ 0.3- 100215 703 0.9- 1.2- 100425 J01 0.4+ 0.1+ 920702 801 1.8+ 0.3- 100215 703 1.1- 0.4- 100425 J01 0.0 0.2- 2000/ 100216 H06 0.7- 0.3+ 100425 J01 0.2- 0.0 001222 867 0.7+ 0.7- 100216 H06 0.1- 1.0+ 100504 704 (2.2+ 1.8+) 001222 867 0.5+ 0.5- 100219 349 0.2+ 0.2- 100504 704 1.1+ 1.8+ 001222 867 1.3+ 0.0 100219 349 0.0 0.3- 100504 704 0.9+ 1.7+ 001222 867 (2.3+ 1.3-) 100306 B33 0.6+ 0.4- 100505 H10 0.4+ 0.1+ 2001/ 100307 B33 0.3+ 0.0 100505 H10 0.5+ 0.0 010127 372 0.8- 0.5+ 100309 H06 0.9+ 0.2+ 100505 H10 0.4+ 0.1- 010127 372 1.1+ 1.1- 100309 H06 0.7+ 0.6+ 100505 H10 0.4+ 0.1+ 010130 867 0.4+ 0.1+ 100309 H06 0.4+ 0.7+ 100508 H10 0.1+ 0.2+ 010130 867 0.1+ 0.1- 100311 C10 0.8- 0.8+ 100508 H10 0.1+ 0.2+ 010130 867 0.2- 0.2+ 100311 C10 0.2+ 0.9+ 100516 H10 0.1+ 0.1- 010218 867 0.6- 0.3+ 100311 C10 0.2- 0.5+ 100517 H10 0.5+ 0.1- 010218 867 0.2- 0.2- 100311 C10 0.1+ 0.9+ 100517 H10 0.1+ 0.1+ 010218 867 0.1+ 0.0 100313 J01 0.6- 0.5- 100602 H10 0.5- 0.3- 010222 867 0.2- 0.5+ 100313 J01 0.2- 0.4- 100604 212 (1.6+ 3.3-) 010222 867 0.2- 0.7+ 100315 204 0.0 0.1+ 100605 204 0.3+ 0.1+ 010222 867 0.3+ 0.6+ 100315 204 0.2- 0.1+ 100605 204 0.1+ 0.4+ 010226 360 0.3- 0.4+ 100315 H47 0.1- 0.5- 100609 H15 0.4- 0.3- 010226 360 1.3- 0.7+ 100315 H47 0.4+ 0.6- 100609 H15 0.8+ 0.5+ 010321 691 0.7- 0.3- 100315 H47 0.5- 1.4- 100609 H15 0.4- 0.5+ 010321 691 1.3- 0.1- 100316 J01 0.1- 0.4- 100613 H10 1.1+ 0.9- 010321 691 1.5- 0.7- 100316 J01 0.3+ 0.2+ 100613 H10 0.6+ 0.2- 010321 402 0.6- 0.9+ 100317 160 0.7+ 0.1- 100618 A77 0.2- 1.4+ 010321 402 0.0 1.0+ 100317 160 0.9+ 0.1+ 100618 A77 1.4+ 0.7- 010321 402 0.4- 0.7+ 100317 H45 0.0 0.0 100619 H10 0.2- 0.6+ 010321 360 0.5- 0.8+ 100317 H45 0.1- 0.3- 100619 H10 1.6+ 0.1+ 010321 360 0.5- 0.8+ 100317 H45 0.1+ 0.1- 100619 H10 0.4+ 0.6- 010321 867 0.8- 0.8+ 100317 H45 0.2+ 0.3+ 100619 H10 0.8+ 0.2- 010321 867 0.5- 0.5+ 100317 H45 0.1+ 0.1- 100704 C51 0.8+ 0.6- 010321 867 0.5- 0.7+ 100317 H45 0.2- 0.0 100704 C51 1.0+ 0.9+ 010325 699 0.5+ 0.2+ 100319 703 0.1+ 0.8- 100704 C51 0.4+ 0.8+ 010325 699 0.6- 0.4+ 100319 703 0.0 0.9- 100705 C51 0.3+ 0.7+ 010325 699 0.7+ 0.1- 100319 703 0.4- 0.2+ 100705 C51 0.8+ 0.6+ 010325 699 0.3- 0.6+ 100319 703 0.5+ 1.3- 100705 C51 0.4+ 0.0 010404 402 0.4- 0.2+ 100323 H45 0.1+ 0.4+ 100705 C51 0.3+ 1.4+ 010404 402 1.8- 0.2+ 100323 H45 0.3- 0.2+ 100705 C51 0.9+ 1.6+ 010404 402 0.9- 0.3- 100323 H45 0.2+ 0.9- 100705 C51 0.1+ 0.9+ 010414 170 (2.2- 1.8+) 100323 H45 0.1+ 0.4- 100705 C51 0.6+ 0.8- 010414 704 0.8- 0.2+ 100323 H45 0.2- 0.4+ 100705 C51 0.2- 0.2- 010414 704 1.6- 0.5+ 100323 H45 0.1- 0.5+ 100705 C51 0.3+ 0.7+ 010414 704 1.6- 1.3+ 100323 215 0.3+ 0.1- 100705 C51 1.0+ 0.1- 010422 170 (3.4- 0.9+) 100323 215 0.1+ 0.1- 100705 C51 0.2- 1.5+ 010422 360 0.2- 0.2+ 100323 215 0.2- 0.1- 100705 C51 0.4+ 0.8+ 010422 360 0.0 0.1- 100327 204 0.0 0.1+ 100705 C51 0.0 0.8- 010430 699 0.8- 0.8- 100327 204 0.2- 0.1+ 100706 C51 0.2+ 0.2+ 010430 699 0.4- 0.2- 100401 B18 1.1- 0.2- 100706 C51 (0.6+ 2.5+) 010430 699 0.7- 0.5- 100401 B18 0.3- 0.7+ 100706 C51 0.0 1.2+ 010430 699 0.6- 0.4- 100401 B18 1.6- 0.4+ 100706 C51 0.8+ 0.0 010501 170 (2.5- 1.4+) 100404 703 1.0- 0.5- 100707 215 0.3- 0.6- 010508 170 0.6+ 0.8+ 100404 703 0.8- 0.3- 100707 215 0.2- 0.3- 010508 170 1.4- 0.6+ 100404 703 0.6- 0.0 100707 215 0.1- 0.1- 010510 118 1.5- 0.1+ 100404 703 0.9- 1.1- 010512 170 (2.2- 0.1+) 100406 160 0.0 0.3+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2016 July 12