Nakano Note (Nakano wa Kangaeru noda) NK 2069 P/2010 H5 (Scotti)
The following improved orbital elements, by S. Nakano, are from 66 observations 2010 Mar. 18 to 2011 Apr. 11. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.34 arc second. See an orbit on HICQ 2010/2011. Epoch = 2010 May 4.0 TT T = 2010 Apr. 17.80275 +/- 0.16820 (m.e.) TT Peri. = 175.13638 +/- 0.01206 Node = 24.89972 +/- 0.00005 (2000.0) Inc. = 14.08678 +/- 0.00011 q = 6.0259513 +/- 0.0000458 AU e = 0.1565036 +/- 0.0000120 a = 7.1440156 +/- 0.0000161 AU n' = 0.05161673 +/- 0.00000017 P = 19.095 +/- 0.0000647 years The predicted orbit for the 2029 return is as follows: Since the comet will pass 0.695 AU and 0.757 AU from Jupiter on 2029 Mar. 17.8 and Aug. 12.3 UT respectively, the comet will pass twice times on the perihelion in 2029. T = 2029 Aug. 30.74976 TT Epoch = 2029 Aug. 12.0 TT Peri. = 185.37806 e = 0.2170252 Node = 22.46429 (2000.0) a = 7.6174481 AU Inc. = 14.47830 n'= 0.04688024 q = 5.9642697 AU P = 21.024 years T = 2029 Sept. 7.31844 TT Epoch = 2029 Sept.21.0 TT Peri. = 185.96738 e = 0.2201304 Node = 22.43986 (2000.0) a = 7.6477275 AU Inc. = 14.41496 n'= 0.04660210 q = 5.9642305 AU P = 21.149 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2010/ 100422 291 0.0 0.3- 100505 G96 0.5- 0.5+ 100318 691 0.1- 0.7- 100422 291 0.0 0.0 100505 G96 0.4- 0.0 100318 691 0.0 0.2- 100422 291 0.0 0.2+ 100505 G96 0.2- 0.4+ 100318 691 0.0 0.6+ 100422 291 0.4- 0.6+ 100505 G96 0.0 0.3+ 100321 G96 0.1- 0.0 100422 291 0.3- 0.2- 100505 291 0.2- 0.0 100321 G96 0.2- 0.2+ 100503 291 0.3+ 0.2+ 100505 291 0.6+ 0.4- 100321 G96 0.1+ 0.2- 100503 291 0.1+ 0.1- 100505 291 0.2+ 0.0 100321 G96 0.6+ 0.1+ 100503 291 0.1+ 0.1- 100508 H01 0.1+ 0.2+ 100321 G96 0.4+ 0.5- 100503 291 0.1+ 0.3+ 100508 H01 0.3+ 0.2+ 100321 G96 0.7- 0.5- 100503 291 0.3+ 0.3+ 100508 H01 0.2+ 0.1+ 100321 G96 0.2+ 0.6- 100503 291 0.1+ 0.1- 100508 H01 0.2+ 0.2+ 100321 G96 0.7+ 0.3- 100503 291 0.3+ 0.2+ 100613 474 0.8+ 0.6+ 100410 G96 0.3- 0.2- 100503 291 0.1+ 0.0 100613 474 1.5- 0.2+ 100410 G96 0.4- 0.0 100503 291 0.3- 0.1- 100704 291 0.3+ 0.1+ 100410 G96 0.1+ 0.2- 100504 291 0.1+ 0.3- 100704 291 0.5+ 0.0 100410 G96 0.6- 0.0 100504 291 0.1+ 0.0 100704 291 0.1+ 0.2+ 100421 691 0.6- 0.3- 100504 291 0.1+ 0.0 100704 291 0.5+ 0.2+ 100421 691 0.8- 0.2+ 100504 291 0.4+ 0.0 100704 291 0.2- 0.4- 100421 691 0.5+ 0.2- 100504 291 0.1- 0.0 100704 291 0.3+ 0.3- 100422 291 0.0 0.1- 100504 291 0.0 0.0 2011/ 100422 291 0.5- 0.5+ 100504 291 0.0 0.0 110411 291 0.2+ 0.2+ 100422 291 (0.5- 2.4-) 100504 291 0.2+ 0.1- 110411 291 0.3- 0.1+ 100422 291 0.2- 0.5+ 100504 291 0.0 0.2- 110411 291 0.1- 0.7- ( ) -------- Rejected Obs.
Associate of Central Bureau for Astronomical Telegrams Syuichi Nakano 2011 May 4