Nakano Note (Nakano wa Kangaeru noda) NK 2762 P/2013 G1 (Kowalski)

The following improved orbital elements, by S. Nakano, are from 147 observations 2013 Apr. 2 to 2014 Aug. 22. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.62 arc second. The recent residuals were +20" and +9" off from an orbit in NK 2560 (= HICQ 2014). Epoch = 2013 Dec. 14.0 TT T = 2013 Dec. 10.96930 +/- 0.00512 (m.e.) TT Peri. = 51.24173 +/- 0.00087 Node = 221.48473 +/- 0.00015 (2000.0) Inc. = 5.46863 +/- 0.00003 q = 3.3530910 +/- 0.0000064 AU e = 0.5123610 +/- 0.0000100 a = 6.8761742 +/- 0.0000207 AU n' = 0.05466178 +/- 0.00000025 P = 18.031 +/- 0.0000814 years The predicted orbit for the 2032 return is as follows: T = 2032 Jan. 6.65072 TT Epoch = 2032 Jan. 9.0 TT Peri. = 50.79051 e = 0.5153923 Node = 221.05721 (2000.0) a = 6.9963556 AU Inc. = 5.44718 n'= 0.05325940 q = 3.3904875 AU P = 18.506 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2013/ 130501 926 0.5- 1.3+ 130801 W96 0.6+ 0.7- 130402 G96 0.8- 0.1+ 130501 926 1.7- 0.8+ 130801 W96 (2.8+ 0.3-) 130402 G96 0.4- 0.3+ 130508 691 1.9- 0.1- 130802 W96 (2.1- 0.2+) 130402 G96 0.7- 0.3+ 130508 691 (2.0- 0.5+) 130802 W96 1.7- 1.4+ 130402 G96 0.8- 0.2+ 130508 691 0.9- 0.3- 130803 Y00 0.6- 0.9- 130402 E23 0.1- 0.4+ 130508 691 1.3- 0.1+ 130803 Y00 0.9- 1.9- 130402 E23 0.3- 0.2+ 130508 691 1.3- 0.3+ 130803 Y00 (2.1+ 1.0-) 130402 E23 (2.1- 0.5+) 130508 691 (2.9- 0.4+) 130825 Y00 0.1+ 1.1- 130402 Q62 0.3+ 0.4+ 130508 F51 0.4+ 0.1- 130825 Y00 (2.8- 0.8-) 130402 Q62 0.3+ 0.1+ 130508 F51 0.4+ 0.0 130825 Y00 1.4+ 0.7- 130402 Q62 0.4+ 0.2+ 130508 F51 0.3+ 0.0 130825 Y00 0.2+ 1.3- 130402 Q62 0.4+ 0.6- 130512 691 (2.4- 0.2+) 130825 Y00 1.1+ 0.5- 130402 Q62 0.3+ 0.3- 130512 691 (2.7- 0.5+) 130825 Y00 1.8+ 1.5- 130403 691 0.4+ 0.4+ 130512 691 (3.1- 0.6+) 130902 474 0.2+ 0.3- 130403 691 0.1- 0.2+ 130514 D90 0.2- 0.3+ 130902 474 0.4+ 0.0 130404 H06 0.1+ 1.0+ 130514 D90 0.8- 0.3+ 130902 474 0.1- 0.3- 130404 H06 0.7+ 0.3+ 130514 D90 0.3- 0.1+ 130902 474 0.5- 0.0 130404 H06 0.9+ 0.1- 130514 215 0.6- 0.2- 130902 474 0.1- 0.3- 130404 H06 0.4+ 0.7- 130514 215 0.5- 0.1- 2014/ 130404 H06 0.6+ 1.4+ 130514 215 0.3- 0.1- 140630 691 0.8- 0.3+ 130404 H06 0.9- 0.2+ 130516 691 (2.7- 0.2+) 140630 691 0.3- 0.3+ 130404 H06 0.3- 0.2- 130516 691 (4.1- 0.2+) 140630 691 0.1- 0.3+ 130404 H06 0.0 0.1+ 130516 691 (3.8- 0.2+) 140722 958 0.5- 0.1- 130404 H06 0.2- 0.2+ 130520 691 (2.6- 0.1-) 140722 958 0.5- 0.3- 130404 691 1.2+ 0.3- 130520 691 (2.6- 0.5+) 140722 958 0.3- 0.1+ 130404 F65 0.8+ 0.1- 130520 691 1.5- 0.1- 140724 K25 0.1- 0.1+ 130404 F65 0.5+ 0.0 130601 G96 1.5- 0.3+ 140724 K25 0.1+ 0.0 130404 F65 0.5+ 0.0 130601 G96 1.2- 0.1- 140727 K25 0.6+ 0.3+ 130404 691 1.1+ 0.6- 130601 G96 1.5- 0.1+ 140727 K25 0.3+ 0.2+ 130404 300 0.4- 0.5+ 130601 G96 1.9- 0.6+ 140727 H15 (2.3+ 0.8+) 130404 300 0.3+ 0.5+ 130603 G96 1.5- 0.2- 140727 H15 0.0 0.2+ 130404 300 0.1- 0.2+ 130603 G96 1.0- 0.3- 140727 H15 0.1- 0.2+ 130404 300 0.1- 0.6+ 130603 G96 1.5- 0.1- 140727 A77 0.4- 0.1+ 130406 Q62 0.0 0.4+ 130603 G96 1.9- 0.2- 140727 A77 0.4- 0.6+ 130406 Q62 0.0 0.3+ 130604 F51 0.6+ 0.4- 140814 Y00 1.2- 0.0 130408 H06 0.3- 0.2+ 130604 F51 0.1+ 0.0 140814 Y00 0.9- 0.2- 130408 H06 0.0 0.1+ 130604 E07 0.1- 0.3- 140814 Y00 0.1+ 0.2- 130412 E07 0.1+ 0.1- 130604 E07 0.3- 0.3- 140817 C47 0.3+ 0.3+ 130412 E07 0.2+ 0.3+ 130609 474 0.2- 0.0 140817 C47 0.0 0.4+ 130413 E12 1.1- 0.7+ 130609 474 0.1+ 0.1- 140817 C47 0.4+ 0.3+ 130413 E12 1.5- 0.8+ 130609 474 0.1+ 0.1+ 140817 C47 0.2+ 0.4+ 130413 E12 1.1- 0.8+ 130612 B74 0.4- 0.4- 140817 C47 0.2+ 0.1+ 130413 349 0.9+ 0.1+ 130612 B74 0.2- 0.2- 140817 C47 0.1+ 0.3+ 130413 349 0.1+ 0.8+ 130612 B74 0.4- 0.6- 140818 474 0.0 0.3+ 130416 C10 0.7- 0.0 130615 E07 0.0 0.5- 140818 474 0.2- 0.3+ 130416 C10 0.1- 0.3+ 130615 E07 0.0 0.2- 140818 474 0.1- 0.3+ 130416 F51 0.5+ 0.1+ 130616 D90 0.0 0.3- 140818 474 0.1- 0.4+ 130416 F51 0.5+ 0.2+ 130616 D90 0.0 0.2- 140818 474 0.1- 0.3+ 130416 Q62 0.2- 0.0 130616 D90 0.1+ 0.1+ 140822 H45 0.1+ 0.5+ 130416 Q62 0.2- 0.2+ 130703 E07 0.4- 0.4+ 140822 H45 0.0 0.3+ 130421 G96 0.9- 0.3+ 130703 E07 0.4- 0.0 140822 H45 0.0 0.1+ 130421 G96 1.0- 0.8+ 130704 E07 0.0 0.7- 140822 H45 0.2- 0.1- 130421 G96 1.2- 0.5+ 130704 E07 0.6+ 0.8- 140822 Y00 0.0 0.4- 130421 G96 1.4- 0.4+ 130715 204 0.0 0.1+ 140822 Y00 0.9+ 0.8- 130501 926 0.1- 0.5+ 130715 204 0.5- 0.8- 140822 Y00 1.7+ 1.0- ( ) -------- Rejected Obs.

Associate of the CBAT Syuichi Nakano 2014 Aug. 26

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