Nakano Note (Nakano wa Kangaeru noda) NK 2913 P/2015 B1 (PANSTARRS)
The following improved orbital elements, by S. Nakano, are from 86 observations 2014 Nov. 30 to 2015 Apr. 22. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.51 arc second. Epoch = 2015 Sept.15.0 TT T = 2015 Sept.21.16298 +/- 0.15215 (m.e.) TT Peri. = 188.38333 +/- 0.01231 Node = 353.35587 +/- 0.00007 (2000.0) Inc. = 18.03779 +/- 0.00019 q = 5.9753319 +/- 0.0000930 AU e = 0.3806883 +/- 0.0000213 a = 9.6483427 +/- 0.0000377 AU n' = 0.03288706 +/- 0.00000019 P = 29.969 +/- 0.0001757 years (+/- 0.06 day) The predicted orbit for the 2044 return is as follows: T = 2044 Nov. 14.40724 TT Epoch = 2044 Nov. 1.0 TT Peri. = 189.02315 e = 0.3648210 Node = 352.83655 (2000.0) a = 9.4390563 AU Inc. = 18.09400 n'= 0.03398687 q = 5.9954906 AU P = 29.000 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2014/ 150210 Q62 0.0 0.1+ 150319 215 0.2- 0.2+ 141130 F51 0.1+ 0.2- 150210 Q62 0.1+ 0.3+ 150324 D29 0.4+ 0.3+ 141130 F51 0.1+ 0.2- 150210 Q62 0.1+ 0.8+ 150324 D29 0.2- 0.7+ 141130 F51 0.0 0.1- 150214 461 0.4+ 0.0 150324 D29 0.1+ 0.2+ 141130 F51 0.0 0.1- 150214 461 0.3- 0.3+ 150325 F51 0.0 0.1- 141209 F51 0.0 0.1- 150214 461 0.2- 0.3+ 150325 F51 0.1- 0.0 141209 F51 0.0 0.1+ 150216 G45 0.4- 0.4+ 150325 F51 0.1+ 0.1- 141209 F51 0.1- 0.3+ 150216 G45 0.6- 0.4+ 150325 F51 0.1+ 0.3- 141209 F51 0.0 0.1+ 150216 G45 0.2- 0.4+ 150327 568 0.0 0.1- 141210 F51 0.2- 0.0 150216 G45 0.7- 0.4- 150327 568 0.0 0.1- 2015/ 150220 B74 0.4- 0.5+ 150327 568 0.0 0.1- 150119 F51 0.0 0.1+ 150220 B74 0.5- 0.3+ 150327 568 0.0 0.1- 150119 F51 0.1+ 0.1- 150220 B74 0.8- 0.2+ 150407 I93 0.7+ 0.8+ 150119 F51 0.0 0.4+ 150224 372 0.5- 0.2- 150407 I93 0.8- 0.4+ 150119 F51 0.1- 0.1+ 150224 372 0.4- 0.4- 150411 G96 0.1+ 0.5+ 150121 F51 0.1+ 0.3+ 150224 372 0.4+ 0.4- 150411 G96 0.1- 0.8+ 150121 F51 0.0 0.1+ 150309 G96 0.3- 0.3+ 150411 G96 0.2- 0.8+ 150121 F51 0.2- 0.4- 150309 G96 0.1- 0.3+ 150411 G96 0.1- 0.6+ 150121 F51 0.0 0.2+ 150309 G96 0.0 0.2+ 150416 568 0.1- 0.0 150129 F51 0.0 0.1+ 150309 G96 0.1- 0.3+ 150416 568 0.1- 0.0 150129 F51 0.1- 0.1- 150311 D29 0.3+ 0.1- 150416 568 0.1- 0.0 150129 F51 0.2+ 0.3- 150311 D29 0.6+ 0.3+ 150416 568 0.1- 0.1+ 150129 F51 0.4- 0.3- 150311 D29 0.6- 1.1+ 150416 568 0.1- 0.0 150131 F51 0.4+ 0.0 150311 B74 0.6- 0.7+ 150416 568 0.1- 0.0 150131 F51 0.2+ 0.1- 150311 B74 0.4- 0.4+ 150422 F51 0.3+ 0.1- 150131 F51 0.5+ 0.2+ 150311 B74 0.2- 0.0 150422 F51 0.2- 0.2+ 150131 F51 0.0 0.0 150314 F51 0.0 0.1- 150422 F51 0.4+ 0.1- 150210 691 0.2- 0.1+ 150314 F51 0.1- 0.0 150422 F51 0.0 0.2- 150210 691 0.3- 0.4+ 150319 215 0.6- 0.7+ 150210 691 0.4- 0.0 150319 215 0.7- 0.7+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2015 May 18