Nakano Note (Nakano wa Kangaeru noda) NK 2105 45P/Honda-Mrkos-Pajduswakova
The following improved orbital elements, by S. Nakano, are from 236 observations 1995 to 2011 excepting all 2006 observations. The planetary perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas, Vesta, and non-gravitational effect of style II were taken into account. The mean residual is +/- 0.88 arc second. The delta-T correction for the prediction in NK 1357 (= MPC 62881, HICQ 2011/2012) was +0.034 day with the RunOff value -71" for R. A. and -18" for Delc.. See the previous orbits in NK 673, NK 807, NK 936 and NK 1357. Epoch = 2011 Oct. 6.0 TT T = 2011 Sept.28.78129 +/- 0.00023 (m.e.) TT Peri. = 326.23868 +/- 0.00030 Node = 89.01107 +/- 0.00027 (2000.0) Inc. = 4.25338 +/- 0.00001 q = 0.5296459 +/- 0.0000005 AU e = 0.8246247 +/- 0.0000006 a = 3.0200716 +/- 0.0000034 AU n' = 0.18779249 +/- 0.00000032 P = 5.248 +/- 0.0000090 years A1 = +0.496 +/- 0.011 A2 = -0.04744 +/- 0.00002 T = 1995 Dec. 25.98436 TT Epoch = 1995 Dec. 29.0 TT Peri. = 326.05026 e = 0.8242184 Node = 89.15921 (2000.0) a = 3.0267719 AU Inc. = 4.24851 n'= 0.18716927 q = 0.5320508 AU P = 5.266 years T = 2001 Mar. 29.92653 TT Epoch = 2001 Apr. 1.0 TT Peri. = 326.12716 e = 0.8250682 Node = 89.08591 (2000.0) a = 3.0206841 AU Inc. = 4.25572 n'= 0.18773538 q = 0.5284137 AU P = 5.250 years [ T = 2006 June 29.81379 TT Epoch = 2006 July 4.0 TT Peri. = 326.11062 e = 0.8244908 Node = 89.11506 (2000.0) a = 3.0212190 AU Inc. = 4.25340 n'= 0.18768552 q = 0.5302516 AU P = 5.251 years ] The predicted orbit for the 2016 return is as follows: T = 2016 Dec. 31.15865 TT Epoch = 2017 Jan. 7.0 TT Peri. = 326.25869 e = 0.8239303 Node = 89.01158 (2000.0) a = 3.0247321 AU Inc. = 4.25057 n'= 0.18735863 q = 0.5325636 AU P = 5.261 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 1995/ 960209 118 0.2- 0.9+ 010415 340 1.6- 0.3+ 950921 568 (3.1- 0.3+) 960209 118 0.1+ 1.4+ 010415 340 0.4+ 0.5- 951021 568 1.8- 0.7- 960209 118 0.2- 1.4+ 010415 340 (2.3- 0.4-) 951021 568 (3.0- 0.9-) 960210 118 0.0 1.1+ 010415 340 (2.6- 1.2+) 951022 568 (2.3- 0.0 ) 960210 118 0.4- 1.0+ 010415 340 0.5- 1.0- 951022 568 (2.4- 0.1-) 960210 118 0.7- 1.2+ 010415 340 1.8- 0.3+ 951116 360 1.0- 0.5- 960211 422 1.9+ 0.4+ 010415 340 (2.4- 0.3-) 951116 360 0.3- 1.0- 960211 422 0.2+ 0.4- 010415 300 0.7- 0.6+ 951116 360 0.2- 0.2- 960211 900 0.1- 0.5+ 010415 300 1.0- 0.6+ 951118 360 0.0 0.8+ 960211 900 0.1- 0.5+ 010415 300 0.9- 0.3+ 951118 360 0.9- 0.5- 960212 897 1.5- 0.3+ 010415 300 0.6- 0.1+ 951118 360 0.1+ 0.5+ 960212 897 0.5- 0.8+ 010415 300 0.7- 0.5+ 951124 897 0.1- 0.7- 960212 897 1.0- 0.3- 010415 300 0.5- 0.8+ 951124 897 0.8- 1.3- 960214 568 1.5+ 1.2+ 010415 367 (2.1- 0.4+) 951124 897 0.7+ 1.8+ 960214 568 0.0 0.5+ 010415 367 1.2- 0.7+ 951127 897 0.1+ 1.9+ 960214 568 1.8+ 0.8+ 010415 367 1.9- 0.2- 951127 897 0.6- 1.1+ 960218 897 0.7- 0.9- 010415 367 (2.1- 0.6+) 951127 897 1.5- 1.7+ 960218 897 0.9- 1.0- 010415 367 0.6- 1.3+ 951127 897 (0.4+ 2.1+) 960221 372 1.1+ 0.8+ 010417 921 0.7- 0.3- 951208 897 0.5- 0.1+ 960222 691 0.5+ 0.0 010417 921 (2.3+ 0.6-) 951208 897 (0.4+ 2.1+) 960222 900 0.5+ 0.9- 010417 921 1.7+ 1.3+ 951208 897 0.6+ 1.9+ 960222 900 0.3+ 0.7- 010417 921 1.6+ 1.1+ 951210 356 1.6+ 1.4+ 960223 046 0.1- 0.1- 010419 402 0.8- 0.7+ 951210 356 0.4+ 1.5+ 960223 046 0.1- 0.1- 010419 402 0.3- 0.7+ 951210 360 0.7- 0.0 960223 046 0.5- 0.1+ 010419 402 0.3- 0.6+ 951210 360 0.6- 0.0 960223 372 1.7- 0.2- 010422 347 1.2+ 2.0+ 951210 360 0.7- 0.1- 960225 118 0.3+ 0.5+ 010422 349 0.1- 0.8+ 951210 356 1.9+ 1.5+ 960226 118 0.3+ 0.2- 010422 349 0.1+ 0.6+ 951210 359 0.4- 1.7+ 960227 897 0.6- 0.6- 010422 347 1.7+ 1.9+ 951210 359 1.6+ 1.3+ 960227 897 1.6+ 1.6- 010422 349 0.7+ 0.3+ 951211 897 0.3+ 0.4+ 960228 372 1.0- 1.3- 010422 347 0.7- 1.5+ 951211 897 0.5- 1.0+ 960228 900 0.7- 1.0- 010422 349 0.6+ 0.5+ 951211 897 0.8+ 0.8- 960228 900 0.4- 0.7- 010422 340 0.3+ 0.5- 951216 422 (3.3+ 0.7+) 960228 360 0.5- 0.8- 010422 340 0.6+ 0.7+ 951218 897 (0.4+ 2.2+) 960228 360 0.6- 0.9- 010426 360 0.5+ 0.6+ 951218 897 0.4- 0.9+ 960301 612 0.2+ 0.3- 010426 360 0.1+ 0.6+ 951220 422 0.5- 1.4+ 960302 900 0.5+ 0.7- 010509 118 0.1+ 0.8- 951220 422 0.8+ 0.4+ 960302 900 0.4+ 0.1- 010509 118 1.1+ 0.7- 951221 422 (2.5+ 1.1+) 960302 120 0.3+ 1.6- 010509 118 (2.1+ 0.9-) 951221 422 (2.9+ 0.5+) 960302 120 0.6+ 0.1- 010512 349 0.5+ 0.1+ 951225 422 0.8+ 0.1+ 960302 120 0.3+ 1.0- 010512 349 1.5+ 0.7- 951225 422 (2.3+ 0.4+) 960308 612 (2.0+ 6.3-) 010513 367 1.5+ 0.0 951225 422 1.1+ 1.0+ 960309 605 (5.0+ 4.2-) 010513 367 1.2+ 0.1+ 951228 422 (4.4+ 0.8+) 960309 605 0.2- 0.9- 010513 367 (2.2+ 0.5-) 951228 422 (3.1+ 1.7+) 960309 605 1.9- 1.2- 010516 360 1.1+ 0.7+ 951228 422 (2.9+ 0.4+) 960310 118 1.0+ 1.4- 010516 360 1.4+ 0.1+ 951230 897 1.9+ 0.5+ 960310 612 0.0 0.4+ 010516 360 1.4+ 0.2+ 951230 897 (2.7+ 0.8+) 960310 612 (4.1+ 2.4-) 010517 402 0.2+ 0.5+ 951230 897 (3.2+ 0.9+) 960313 900 0.5- 0.7- 010517 402 (3.8+ 0.1-) 1996/ 960313 897 1.6+ 0.8- 010517 402 1.6+ 0.8+ 960101 897 (3.2+ 0.4+) 960313 897 0.4+ 1.4- 010517 402 (3.8+ 0.3+) 960101 897 (2.8+ 2.1+) 960313 897 (0.7+ 2.4-) 2006/ 960101 897 1.7+ 0.0 960313 900 0.3+ 1.6- 060530 349(42.5+ 21.2+) 960127 897 0.2- 1.7+ 960313 897 (0.6+ 4.2-) 060530 349(41.5+ 18.5+) 960127 897 (0.5- 2.2+) 960315 605 (3.1- 1.4-) 060530 349(42.3+ 20.2+) 960127 900 0.2- 0.7+ 960315 605 (6.6+ 2.1-) 060530 E12(39.9+ 17.9+) 960127 900 0.8- 1.3+ 960317 557 0.3+ 1.5- 060530 E12(39.0+ 17.2+) 960131 897 (4.2- 2.4+) 960317 557 0.2- 1.1- 060530 E12(39.4+ 17.0+) 960131 897 (2.5- 0.1-) 960317 557 0.3- 0.9- 060530 E12(39.2+ 16.5+) 960131 897 (5.2- 1.1+) 960318 801 0.2- 1.6- 060606 D87(40.7+ 15.2+) 960201 611 (6.3- 2.0+) 960318 801 0.1+ 1.2- 060606 D87(42.7+ 15.9+) 960201 611 (2.8- 2.6+) 960322 897 (2.8+ 1.7-) 060606 D87(38.7+ 16.3+) 960201 422 1.7+ 0.5+ 960419 691 0.5+ 1.3- 060606 D87(39.6+ 15.5+) 960201 422 0.1- 0.6+ 960419 691 0.8+ 1.5- 2011/ 960202 568 0.4+ 0.4+ 960420 691 0.8+ 1.4- 110605 693 0.3+ 0.1- 960202 422 1.2- 0.5+ 960420 691 0.6+ 1.0- 110605 693 0.3+ 0.2+ 960202 422 1.3- 1.0+ 1997/ 110605 693 0.2- 0.4- 960202 422 0.3- 0.5- 970415 568 0.5- 0.8- 110605 693 0.2- 0.1+ 960202 900 1.1- 0.3+ 970415 568 0.1- 0.9- 110607 693 0.7- 1.0+ 960202 900 0.7- 0.3+ 970415 568 0.8+ 0.4- 110607 693 0.1- 0.5+ 960203 422 0.5- 0.4+ 970415 568 0.1+ 1.1- 110607 693 0.5- 0.6+ 960203 422 1.1- 0.2- 970415 568 0.6- 0.6- 110607 693 0.4- 0.7+ 960203 422 0.1+ 0.1+ 2000/ 110607 693 0.1+ 0.4+ 960203 897 (2.2- 1.3-) 000727 809 0.8- 1.3- 110608 675 0.2- 0.7+ 960203 897 0.7- 0.0 000727 809 0.8- 1.3- 110608 675 0.1- 0.7+ 960205 900 1.1- 1.4+ 000727 809 0.7- 1.4- 110608 675 0.2- 0.7+ 960205 900 0.1- 0.4+ 000727 809 0.9- 1.3- 110608 675 0.2- 0.7+ 960206 118 0.5+ 0.3+ 000727 809 1.2- 1.1- 110608 675 0.2- 0.8+ 960206 118 0.4- 1.7+ 2001/ 110612 G96 0.2+ 0.6+ 960206 118 1.4+ 1.5+ 010404 349 1.5- 0.4- 110612 G96 0.1+ 0.4+ 960206 118 1.3+ 1.7+ 010404 349 1.5- 0.4+ 110612 G96 0.1+ 0.7+ 960206 897 0.1+ 1.3+ 010404 349 0.0 1.0+ 110612 G96 0.1+ 0.7+ 960207 046 0.9+ 0.1+ 010404 349 1.8- 0.0 110630 A77 0.8- 0.0 960207 046 1.5+ 0.5- 010404 349 0.1+ 1.0+ 110630 A77 0.5+ 0.3- 960207 046 0.2- 0.2+ 010405 300 1.2- 0.4+ 110630 A77 0.2+ 1.2+ 960207 046 0.6- 0.5- 010405 300 1.3- 0.2- 110630 H10 0.3- 1.1+ 960207 120 (2.5- 2.2+) 010405 300 1.2- 0.4+ 110630 H10 0.1+ 0.7+ 960207 120 1.5+ 0.5+ 010405 300 1.5- 0.0 110630 H10 1.6+ 0.2- 960207 120 0.8+ 0.3- 010405 300 1.2- 0.7+ 110630 704 0.3+ 0.8+ 960207 611 (5.8+ 0.1-) 010407 340 1.9- 1.1+ 110630 704 1.5- 2.0+ 960207 900 0.6+ 1.0+ 010407 340 (2.8- 0.4-) 110630 704 0.7- 1.1+ 960207 422 0.3+ 0.1- 010407 340 (2.5- 0.4+) 110630 704 0.9- 0.9+ 960207 422 0.5+ 0.9+ 010407 340 1.6- 1.3+ 110701 H10 1.4- 1.4+ 960207 422 0.6+ 0.4- 010413 349 0.1+ 0.9+ 110701 H10 0.7- 1.0+ 960207 900 0.8+ 0.2+ 010413 349 0.1- 0.5+ 110701 G92 0.5- 0.4+ 960209 557 1.5+ 0.0 010413 341 0.0 0.5+ 110701 G92 0.8- 0.6+ 960209 557 0.0 0.6+ 010413 349 0.0 0.2+ 110701 G92 0.5+ 0.4+ 960209 356 (2.5- 1.1+) 010413 349 0.3- 0.2+ 110701 G92 0.3- 1.1+ 960209 356 (2.3- 1.8+) 010413 341 0.6- 0.1+ 110702 C10 0.7- 1.0+ 960209 356 (3.3- 0.1+) 010413 341 0.2+ 1.0+ 110702 C10 0.1+ 1.1+ 960209 118 0.1- 0.9+ 010413 170 0.8+ 0.0 960209 118 0.3- 1.2+ 010413 170 1.0+ 0.1+ ( ) -------- Rejected Obs.
Associate of Central Bureau for Astronomical Telegrams Syuichi Nakano 2011 July 3