Nakano Note (Nakano wa Kangaeru noda) NK 2865 P/2013 CU129 (PANSTARRS)

The following improved orbital elements, by S. Nakano, are from 164 observations 2013 Feb. 1 to Dec. 23. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.63 arc second. See the previous orbit in NK 2566. Epoch = 2013 Aug. 16.0 TT T = 2013 Aug. 6.93213 +/- 0.00003 (m.e.) TT Peri. = 211.97225 +/- 0.00011 Node = 46.20992 +/- 0.00012 (2000.0) Inc. = 12.14763 +/- 0.00001 q = 0.8001465 +/- 0.0000002 AU e = 0.7221101 +/- 0.0000010 a = 2.8793652 +/- 0.0000035 AU n' = 0.20172463 +/- 0.00000036 P = 4.886 +/- 0.0000088 years The predicted orbit for the 2018 return is as follows: T = 2018 June 24.34814 TT Epoch = 2018 June 11.0 TT Peri. = 211.92764 e = 0.7227322 Node = 46.22850 (2000.0) a = 2.8775523 AU Inc. = 12.15534 n'= 0.20191530 q = 0.7978527 AU P = 4.881 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2013/ 130422 H21 0.1- 0.2+ 130901 Y00 1.2+ 0.9- 130201 F51 0.1- 0.2+ 130602 F51 0.0 0.3+ 130902 474 0.4- 1.1+ 130201 F51 0.0 0.2+ 130602 F51 0.0 0.2+ 130902 474 0.4- 1.1+ 130201 F51 0.1- 0.3+ 130602 F51 0.1- 0.3+ 130902 474 0.3- 1.0+ 130213 F51 0.0 0.2+ 130605 568 0.2- 0.2+ 130902 474 0.4- 1.1+ 130213 F51 0.2+ 0.3+ 130605 568 0.2- 0.1+ 130902 474 0.3- 1.1+ 130213 F51 0.1+ 0.2+ 130605 568 0.2- 0.1+ 130904 Q62 0.0 0.8+ 130213 F51 0.1+ 0.3+ 130605 568 0.3- 0.1+ 130904 Q62 0.2+ 0.6+ 130213 C44 0.1+ 0.7+ 130622 Q62 1.6+ 0.7- 130904 Q62 0.1- 0.9+ 130213 C44 0.5- 0.2+ 130622 Q62 0.7+ 0.9+ 130908 Y00 1.0- 1.3+ 130214 H21 0.4- 0.0 130623 Q62 1.9+ 0.5+ 130908 Y00 0.4- 1.1- 130214 H21 0.0 0.3+ 130623 Q62 1.2+ 0.6+ 130908 Y00 1.0+ 0.4- 130214 H21 0.2- 0.2+ 130623 Q62 0.6+ 0.7+ 130913 D90 0.3+ 0.0 130214 B74 0.2+ 0.4+ 130701 Q62 0.5+ 0.0 130913 D90 0.2+ 0.4+ 130214 J95 0.5- 0.4+ 130701 Q62 0.3+ 0.0 130913 D90 0.0 0.1+ 130214 B74 0.0 0.4+ 130701 Q62 0.6+ 0.1+ 130928 W96 0.2+ 0.1+ 130214 J95 0.1- 0.3+ 130701 Q62 0.7+ 0.2+ 130928 W96 0.3- 0.4+ 130214 J95 0.4+ 0.5+ 130702 Q62 1.0+ 0.3+ 130928 W96 0.8+ 0.8+ 130214 B74 0.3- 0.5+ 130702 Q62 1.2+ 0.7+ 130928 W96 0.7+ 0.5+ 130214 J04 0.5- 0.1+ 130702 Q62 0.5+ 0.5+ 130928 W96 0.1+ 0.2+ 130214 J04 0.1- 0.4+ 130702 Q62 0.4+ 1.1+ 130928 W96 0.5+ 0.3+ 130214 J04 0.1- 0.2+ 130708 474 0.6+ 0.0 131008 W96 0.8- 0.4+ 130215 204 0.1+ 0.4+ 130708 474 0.3+ 0.1- 131008 W96 (2.1+ 0.8+) 130215 204 0.5+ 0.0 130708 474 0.5+ 0.0 131008 W96 1.3+ 0.1+ 130215 204 0.3- 0.2+ 130708 474 0.2+ 0.1- 131008 W96 0.3+ 0.8+ 130216 291 0.2- 0.7+ 130708 474 0.2+ 0.1- 131012 W96 0.2- 0.6+ 130216 291 0.7+ 0.1+ 130708 474 0.5+ 0.2- 131012 W96 0.3+ 0.9+ 130216 291 0.1+ 0.2+ 130724 Q62 0.6+ 0.4+ 131012 W96 1.1+ 0.6+ 130217 291 0.3+ 0.3+ 130724 Q62 0.9+ 0.4+ 131020 W96 1.4+ 1.9+ 130217 291 0.2+ 0.4+ 130724 Q62 0.6+ 0.3+ 131020 W96 (3.0+ 2.1+) 130217 291 0.1+ 0.5+ 130724 Q62 1.0+ 0.3+ 131020 W96 (2.3+ 2.8+) 130218 291 0.1+ 0.6+ 130804 Y00 1.1+ 0.7- 131022 W96 1.8+ 1.7+ 130218 291 0.1+ 0.6+ 130804 Y00 1.8+ 0.8- 131022 W96 1.0+ 1.7+ 130218 291 0.0 0.6+ 130804 Y00 (2.4+ 1.2-) 131022 W96 (2.6+ 2.1+) 130220 H21 0.4+ 0.4+ 130815 Q62 0.5+ 0.6+ 131025 E07 0.5+ 0.9+ 130220 H21 0.2- 0.4+ 130815 Q62 0.6+ 0.5+ 131025 E07 1.2+ 1.0+ 130220 H21 0.4+ 0.2- 130815 Q62 0.4+ 0.6+ 131102 474 0.3- 1.2+ 130220 H21 0.4+ 0.0 130815 Q62 0.7+ 0.4+ 131102 474 0.6- 0.7+ 130221 H21 0.0 0.2- 130815 Q62 0.7+ 0.4+ 131102 474 0.9- 0.8+ 130221 H21 0.1- 0.0 130815 Q62 0.7+ 0.4+ 131102 474 0.9- 1.0+ 130221 H21 0.1+ 0.2- 130819 Y00 (2.6+ 1.2-) 131103 W96 0.4+ 1.4+ 130302 291 0.0 0.5+ 130819 Y00 (2.2+ 1.1-) 131103 W96 0.1- 1.1+ 130302 291 0.2+ 0.8+ 130819 Y00 (2.2+ 1.1-) 131103 W96 0.4+ 0.9+ 130302 291 0.5- 0.7+ 130820 Q62 0.2+ 0.6+ 131103 474 0.8- 0.6+ 130314 H21 0.3- 0.2- 130820 Q62 0.1- 0.6+ 131103 474 1.2- 0.4+ 130314 H21 0.1- 0.3- 130820 Q62 0.2+ 0.4+ 131103 474 1.2- 0.8+ 130314 H21 0.0 0.4- 130820 Q62 0.2+ 0.4+ 131103 474 1.3- 0.5+ 130315 H21 1.1- 0.0 130824 Y00 0.9- 0.9+ 131104 W96 1.0- 1.0+ 130315 H21 0.5+ 0.5+ 130824 Y00 0.5- 0.6- 131105 W96 0.7+ 1.2+ 130315 H21 1.1+ 0.6+ 130824 Y00 1.5+ 1.1- 131105 W96 1.4+ 1.4+ 130319 H21 0.5+ 0.1- 130825 Q62 0.1+ 0.5+ 131125 C32 (1.9- 3.3-) 130319 H21 0.7+ 0.3- 130825 Q62 0.1+ 0.5+ 131125 C32 (2.0- 3.2-) 130319 H21 0.6+ 0.3- 130825 Q62 0.2+ 0.4+ 131125 C32 (2.1- 3.7-) 130329 H21 0.2+ 0.4+ 130828 Y00 (3.3+ 1.9-) 131125 C32 (2.8- 3.5-) 130329 H21 0.0 0.7+ 130828 Y00 (3.2+ 1.8-) 131201 W96 0.8- 1.1- 130329 H21 0.4+ 0.2+ 130828 Y00 (3.1+ 1.9-) 131201 W96 1.6+ 0.2- 130403 H21 0.2- 0.1+ 130831 D90 0.5+ 0.3+ 131223 215 0.6- 0.1+ 130403 H21 0.1+ 0.0 130831 D90 0.5+ 0.4+ 131223 215 1.4- 0.2- 130403 H21 0.1+ 0.2+ 130831 D90 0.4+ 0.4+ 131223 215 (2.9- 0.9-) 130422 H21 0.1- 0.5+ 130901 Y00 0.8- 0.7+ 130422 H21 0.3+ 0.1+ 130901 Y00 0.1+ 0.6+ ( ) -------- Rejected Obs.

Associate of the CBAT Syuichi Nakano 2015 Apr. 29

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