Nakano Note (Nakano wa Kangaeru noda) NK 3978 P/1997 B1 (Kobayashi)
The following improved orbital elements, by T. Kobayashi, are from 237 observations 1997 Jan. 30 to May 28. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.49 arc second. See the previous orbits in MPC 29568, MPC 29880 and MPC 30063. S. Nakano gives the predicted-T = 2022 Mar. 28.71 TT from his orbit on MPC 30063. Epoch = 1997 Mar. 13.0 TT T = 1997 Mar. 2.34759 +/- 0.00165 (m.e.) TT Peri. = 183.34032 +/- 0.00071 Node = 329.06410 +/- 0.00003 (2000.0) Inc. = 12.34954 +/- 0.00006 q = 2.0545525 +/- 0.0000063 AU e = 0.7607542 +/- 0.0000071 a = 8.5876228 +/- 0.0000035 AU n' = 0.03916468 +/- 0.00000186 P = 25.166 +/- 0.0011286 years (+/- 0.41 day) The predicted orbit for the 2022 return is as follows: T = 2022 Mar. 28.81198 TT Epoch = 2022 Apr. 11.0 TT Peri. = 183.31675 e = 0.7604621 Node = 328.88222 (2000.0) a = 8.5840301 AU Inc. = 12.33923 n'= 0.03918928 q = 2.0562002 AU P = 25.150 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 1997/ 970208 108 (3.3- 0.1-) 970304 402 0.1+ 0.3- 970130 411 1.2+ 0.6- 970209 108 0.1+ 1.1- 970304 104 0.6+ 0.2- 970130 411 0.5- 0.3+ 970209 670 0.3+ 0.3+ 970304 104 0.3- 0.1+ 970131 411 0.1+ 0.4+ 970209 670 (1.1+ 2.6-) 970304 104 0.1- 0.1+ 970131 411 0.7+ 0.4+ 970209 670 0.6+ 0.6+ 970304 104 0.5- 0.4+ 970201 411 0.5+ 0.1+ 970209 360 0.1+ 0.4- 970305 411 0.4- 0.3- 970201 411 0.7+ 0.6+ 970209 360 0.2+ 0.5- 970305 411 0.0 0.0 970201 411 0.3+ 0.2+ 970209 360 0.1- 0.5- 970305 411 0.1- 0.4+ 970201 411 0.2- 0.4- 970209 402 0.3+ 0.3- 970305 360 0.1+ 0.1- 970202 367 0.4- 1.5+ 970209 402 0.4- 0.3- 970305 360 0.2+ 0.2- 970202 367 0.0 0.9+ 970209 402 0.5- 0.5- 970305 402 0.0 0.2- 970202 046 0.1- 0.0 970209 557 0.7- 0.4- 970305 402 0.1+ 0.1- 970202 046 0.1- 0.5+ 970209 557 0.6- 0.0 970305 402 0.2- 0.1+ 970202 046 0.7- 0.1+ 970209 557 0.5- 0.1- 970307 411 0.4- 0.6- 970202 046 0.8- 0.2+ 970210 046 0.3+ 0.1+ 970307 411 0.3- 0.2+ 970202 046 1.5+ 0.3+ 970210 046 0.0 0.2- 970307 411 0.5+ 0.3+ 970202 046 0.1+ 0.1- 970210 046 0.0 0.1- 970307 355 0.8+ 0.5+ 970203 709 0.2- 0.2+ 970211 385 1.1- 0.1+ 970307 355 0.0 0.1+ 970203 709 0.0 0.1+ 970211 385 1.2- 0.2+ 970307 355 0.8+ 0.4+ 970203 709 0.1+ 0.1+ 970211 385 0.9- 0.3+ 970308 411 0.0 0.6+ 970203 709 0.2+ 0.1+ 970211 411 0.7- 0.0 970308 411 0.8- 0.2- 970203 709 0.2- 0.0 970211 411 0.2- 0.2+ 970308 411 0.7- 0.3- 970203 709 0.3- 0.1+ 970211 355 0.6- 0.5- 970308 402 0.4- 0.4- 970203 897 0.5+ 0.3- 970211 355 0.6- 0.1- 970308 402 0.1- 0.4- 970203 897 0.5- 0.1- 970211 355 0.7- 0.2- 970308 402 0.1+ 0.2- 970203 897 0.9+ 0.8- 970211 897 0.2- 0.3+ 970309 411 0.7- 0.2+ 970203 411 0.1+ 0.3- 970211 897 0.5- 0.1+ 970309 411 0.0 0.3- 970203 411 0.4- 0.1+ 970212 411 0.8- 0.8+ 970309 411 0.3- 0.1+ 970203 355 0.6+ 0.0 970212 411 1.1- 0.3+ 970309 385 0.0 0.2- 970203 355 0.2- 0.3- 970214 966 1.2- 0.4+ 970309 385 0.4- 0.0 970203 355 0.2+ 0.4+ 970214 966 0.5+ 0.1- 970309 385 0.2- 0.0 970203 557 0.2+ 0.2- 970214 411 0.3- 0.7+ 970310 046 0.6- 0.0 970203 557 0.1- 0.3+ 970214 411 0.3+ 0.9+ 970310 046 0.4- 0.0 970203 557 0.5- 0.0 970214 411 0.1- 0.5+ 970310 046 0.3- 0.1- 970203 557 0.2- 0.1- 970214 367 0.5+ 0.0 970310 979 0.3- 0.1+ 970203 046 0.3+ 0.1+ 970214 367 0.0 0.1+ 970310 979 0.5- 0.2+ 970203 046 0.1+ 0.1+ 970214 900 0.1- 0.0 970312 411 0.6- 0.2- 970203 046 0.4+ 0.0 970214 900 0.0 0.0 970312 411 0.4- 0.1- 970204 709 0.2+ 0.3+ 970216 411 0.2+ 0.0 970312 411 0.2- 0.0 970204 709 0.1- 0.2+ 970216 411 0.2+ 0.1- 970317 402 0.1+ 0.0 970204 709 0.0 0.3+ 970216 411 0.4+ 0.3- 970317 402 0.2- 0.0 970204 709 0.0 0.3+ 970217 411 0.5+ 0.4+ 970317 402 0.3+ 0.1- 970204 608 0.3- 0.5+ 970217 411 0.2+ 0.1+ 970324 658 0.8+ 1.1+ 970204 608 0.4- 0.9+ 970217 411 0.1+ 0.2+ 970324 658 1.1+ 0.7+ 970204 566 0.2- 0.3- 970219 900 0.6- 0.3- 970324 658 1.9+ 0.1+ 970204 566 0.1- 0.5- 970219 900 0.1+ 0.2+ 970324 897 0.0 1.9+ 970204 657 (2.0- 2.2+) 970220 118 0.6+ 0.3- 970331 360 0.7- 0.2- 970204 566 0.4- 0.0 970220 118 0.1+ 1.3- 970331 360 0.3- 0.0 970204 657 0.4- 0.9+ 970220 118 1.1+ 0.6- 970331 867 0.0 0.2- 970204 657 0.0 1.0- 970224 867 0.3- 0.0 970331 867 0.2- 0.1- 970204 897 0.3+ 0.4- 970224 867 0.2+ 0.3+ 970331 867 0.3- 0.1- 970204 897 0.5+ 0.5+ 970224 867 0.6+ 0.2+ 970331 118 0.5+ 0.7+ 970204 327 0.5- 0.7- 970226 411 0.0 0.3- 970331 118 0.7+ 0.6+ 970204 327 0.2+ 0.1- 970226 411 0.0 0.2- 970331 118 0.6+ 0.8+ 970204 327 0.8- 0.5- 970226 411 0.2- 0.1- 970402 118 0.5+ 0.5- 970204 327 0.1- 0.2- 970227 402 0.1+ 0.7+ 970402 118 1.1+ 0.2- 970204 360 0.5+ 0.1+ 970227 402 0.2- 0.5+ 970410 411 0.3- 0.2- 970204 360 0.4+ 0.1+ 970227 402 0.1- 0.4+ 970410 411 0.2- 0.3- 970204 360 0.1+ 0.1+ 970227 360 0.1- 0.2- 970410 411 0.2+ 0.6- 970205 608 0.5+ 0.9+ 970227 360 0.2+ 0.1+ 970410 897 0.9- 0.7+ 970205 608 0.6+ 0.9+ 970227 360 0.0 0.2+ 970410 897 0.9- 0.3+ 970205 402 0.7+ 0.1+ 970301 411 0.4- 0.1+ 970413 385 0.8- 0.8+ 970205 402 0.6+ 0.2+ 970301 411 0.0 0.1+ 970413 385 1.4+ 0.8+ 970205 402 0.7+ 0.1+ 970302 046 0.2- 0.1- 970413 385 0.0 0.1- 970205 402 0.5+ 0.2- 970302 046 0.5+ 0.1- 970424 402 0.4- 1.1- 970206 657 0.2+ 1.1- 970302 046 0.2- 0.1- 970424 402 0.4- 0.6- 970206 657 0.4+ 0.7- 970302 046 0.0 0.2- 970424 402 0.6+ 0.6- 970206 657 0.4- 0.9- 970303 411 0.4+ 0.4- 970429 360 0.2- 0.3+ 970206 385 0.6- 0.6- 970303 411 0.5+ 0.0 970429 360 0.5+ 0.3+ 970206 385 0.1- 0.1- 970303 411 0.3+ 0.0 970501 118 0.7+ 0.3- 970206 385 0.3- 0.1- 970304 411 0.1- 0.1+ 970501 118 0.0 0.4+ 970206 411 0.2+ 0.8- 970304 411 0.1- 0.2+ 970504 411 0.7- 0.7- 970206 411 0.6+ 0.5- 970304 411 0.1- 0.2+ 970504 402 0.6- 1.5- 970206 046 0.1+ 0.1- 970304 355 0.3- 0.0 970504 402 0.8+ 0.2- 970206 046 0.5+ 0.2- 970304 897 0.2+ 0.4- 970504 402 0.0 0.1+ 970206 046 0.5+ 0.2- 970304 355 0.6+ 0.8+ 970526 360 1.2- 0.5- 970207 108 (2.1+ 0.7-) 970304 897 1.0+ 0.1- 970526 360 0.2- 0.9- 970207 108 0.2- 0.5- 970304 355 0.1+ 0.5- 970528 402 1.7+ 1.5+ 970207 108 0.1- 1.1- 970304 897 0.4+ 0.4- 970528 402 1.6- 0.5+ 970208 900 0.8+ 0.4- 970304 402 0.2- 0.2- 970528 402 0.7+ 0.2- 970208 900 0.3- 0.0 970304 402 0.0 0.4- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2019 Dec. 14