Nakano Note (Nakano wa Kangaeru noda) NK 2603 C/2013 US10 (Catalina)
The following improved orbital elements, by S. Nakano, are from 123 observations 2013 Aug. 14 to Dec. 2. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.39 arc second. Epoch = 2015 Dec. 4.0 TT T = 2015 Nov. 15.68499 +/- 0.09059 (m.e.) TT Peri. = 340.35952 +/- 0.00353 Node = 186.14310 +/- 0.00256 (2000.0) Inc. = 148.87549 +/- 0.00449 q = 0.8228719 +/- 0.0003145 AU e = 1.0003321 +/- 0.0000330 1/a = -0.0004036 +/- 0.0000401 1/AU origin = +0.000015 (Q= 6) future = -0.000293 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2013/ 131031 Q62 0.1- 0.5+ 131102 448 0.2+ 0.0 130814 F51 0.0 0.0 131031 Q62 0.1- 0.5+ 131102 448 0.3- 0.1- 130814 F51 0.0 0.1+ 131031 Q62 0.0 0.4+ 131102 Q62 0.2+ 0.3+ 130814 F51 0.0 0.0 131031 046 0.2+ 0.6- 131102 Q62 0.3- 0.2- 130814 F51 0.0 0.0 131031 046 0.3- 1.5+ 131102 E94 0.2- 0.2+ 130827 F51 0.1+ 0.1- 131031 046 0.3+ 0.3+ 131102 E94 0.0 0.6+ 130827 F51 0.0 0.0 131031 046 1.8+ 1.5+ 131102 E94 0.7- 0.2- 130901 703 0.9+ 1.1- 131031 246 0.7- 0.7- 131104 H06 0.3+ 0.0 130901 703 0.5- 0.2- 131031 246 0.2- 0.4- 131104 H06 0.0 0.9- 130901 703 1.0+ 0.4+ 131031 246 0.3- 0.4- 131104 H06 0.1+ 0.1- 130901 703 0.9- 0.5- 131031 246 0.5- 1.0- 131104 H06 0.7+ 0.5+ 130908 F51 0.0 0.1- 131031 246 0.5- 1.5- 131104 H06 0.3+ 0.1- 130909 H15 0.3+ 0.0 131031 246 0.0 0.3+ 131104 H06 0.4+ 0.1- 130909 H15 0.3+ 0.1- 131031 204 0.0 0.1+ 131105 568 0.1+ 0.1- 130909 H15 0.2- 0.9+ 131031 204 0.1+ 0.1- 131105 568 0.0 0.0 130909 H15 0.0 0.4- 131031 204 0.2+ 0.1- 131105 568 0.0 0.1- 130912 703 0.1+ 0.5+ 131101 H01 0.1+ 0.0 131106 568 0.2- 0.1+ 130912 703 0.2+ 0.1+ 131101 H01 0.1+ 0.1- 131106 568 0.2- 0.0 130912 703 0.3- 0.3+ 131101 H01 0.1+ 0.0 131106 568 0.2- 0.0 130912 703 0.9- 0.0 131101 H01 0.0 0.0 131108 W96 0.0 0.3- 130923 703 0.1- 0.9+ 131101 H36 0.2+ 0.3+ 131108 W96 0.5- 0.3- 130923 703 0.2- 0.3+ 131101 G48 0.4- 0.2+ 131108 W96 0.0 0.0 130923 703 0.1- 0.3+ 131101 G48 0.3+ 0.0 131116 D90 (4.6- 4.8-) 130923 703 0.8- 0.1+ 131101 G48 0.2- 0.2- 131116 D90 (2.1- 2.7-) 131024 F51 0.1+ 0.1+ 131101 H36 0.3+ 0.0 131116 D90 0.2- 0.6+ 131024 F51 0.1+ 0.1+ 131101 448 0.8+ 0.2- 131123 D90 0.1- 0.1- 131025 703 0.1- 0.5- 131101 H36 0.1- 0.2- 131123 D90 0.1+ 0.0 131025 703 0.3- 0.9- 131101 448 0.5+ 0.0 131123 D90 0.1- 0.2- 131025 703 0.0 0.7- 131101 448 0.3+ 0.1- 131124 D95 0.3+ 0.5- 131025 703 0.5- 0.1- 131101 E23 0.4+ 0.2- 131124 D95 0.0 0.4- 131026 D29 0.6- 0.4+ 131101 E23 0.4+ 0.2- 131124 D95 0.8+ 0.4- 131026 D29 0.1+ 0.4- 131101 E23 0.4+ 0.6- 131124 900 0.9- 1.0- 131026 D29 0.5- 0.3+ 131101 900 0.4+ 1.2- 131124 900 0.7- 1.2- 131031 703 1.4+ 1.6+ 131101 900 0.1+ 0.6- 131126 130 0.5+ 0.1- 131031 703 0.6+ 0.7+ 131102 H01 0.1+ 0.2+ 131126 130 0.4+ 0.0 131031 703 0.4+ 0.4+ 131102 H01 0.1+ 0.2+ 131127 215 0.1+ 0.1+ 131031 703 0.4+ 1.2+ 131102 673 0.1+ 0.2+ 131127 215 0.3+ 0.2+ 131031 703 0.6- 0.8+ 131102 673 0.1- 0.3+ 131127 215 0.2+ 0.4+ 131031 703 0.5- 0.2- 131102 H01 0.0 0.2+ 131201 349 0.1+ 1.0+ 131031 703 1.4- 0.5- 131102 673 0.7+ 0.3- 131201 349 0.3+ 0.6+ 131031 673 0.0 0.3- 131102 H01 0.1+ 0.2+ 131202 Q68 0.1- 0.1+ 131031 673 0.0 0.3- 131102 448 0.1+ 0.1- 131202 Q68 0.5- 0.3+ ( ) -------- Rejected Obs. The comet will become a bright object in 2015/2016 as follows: 2015/16 R. A. (2000) Decl. Delta r Daily motion Elong. Phase Mag. 0h TT h m o , AU AU , o o o m1 June 7 23 53.79 -27 08.6 2.505 2.682 17.9/167 88.8 22.2 10.8 17 23 56.83 -30 02.9 2.211 2.558 24.5/178 98.0 23.2 10.3 27 23 57.53 -34 07.9 1.925 2.432 34.4/186 107.5 23.5 9.8 July 7 23 54.24 -39 49.9 1.656 2.304 48.5/193 117.0 23.1 9.2 17 23 43.25 -47 40.3 1.420 2.175 66.4/200 125.6 22.3 8.6 27 23 14.60 -57 52.6 1.233 2.044 84.1/210 130.4 22.2 8.1 Aug. 6 21 55.90 -68 57.5 1.119 1.912 92.8/231 127.3 25.0 7.6 16 18 45.52 -73 40.4 1.090 1.778 86.6/280 115.4 31.0 7.2 26 16 12.79 -66 34.9 1.143 1.644 70.6/319 99.4 37.3 6.9 Sept. 5 15 16.08 -56 50.3 1.252 1.510 54.0/335 83.1 41.5 6.8 15 14 52.92 -48 32.2 1.389 1.378 41.2/342 68.1 42.6 6.6 25 14 41.80 -41 57.6 1.530 1.248 32.6/347 54.3 40.8 6.4 Oct. 5 14 35.62 -36 39.9 1.657 1.125 27.4/349 41.5 36.1 6.1 15 14 31.56 -32 10.3 1.755 1.012 24.9/350 29.4 28.9 5.8 25 14 28.27 -28 04.7 1.812 0.918 24.5/350 18.0 19.5 5.4 Nov. 4 14 25.20 -24 03.5 1.816 0.852 25.6/351 9.2 10.7 5.1 14 14 22.38 -19 50.5 1.762 0.823 28.2/353 12.5 15.0 4.9 24 14 20.08 -15 10.2 1.646 0.838 33.0/356 23.4 27.9 4.8 Dec. 4 14 18.57 -09 40.6 1.479 0.892 42.0/358 35.8 40.3 4.9 14 14 17.66 -02 41.1 1.276 0.978 58.7/358 49.2 49.7 4.9 24 14 16.44 +07 06.1 1.060 1.085 89.1/357 64.0 54.6 5.0 Jan. 3 14 12.80 +21 55.1 0.863 1.205 133.3/354 81.3 53.7 5.0 13 14 00.44 +43 59.2 0.739 1.333 158.8/350 100.5 46.5 5.1 23 13 07.51 +69 34.6 0.752 1.465 129.5/335 114.5 37.7 5.5 Feb. 2 07 24.86 +81 03.6 0.907 1.599 82.9/247 115.2 33.9 6.3 12 04 37.18 +70 49.9 1.152 1.733 50.6/200 108.0 32.8 7.2 22 04 12.48 +62 45.0 1.440 1.867 31.9/186 98.7 31.6 8.0 Mar. 3 04 08.67 +57 26.8 1.745 1.999 21.4/173 89.5 29.7 8.7 13 04 11.46 +53 53.9 2.054 2.130 15.5/160 80.6 27.4 9.3 23 04 17.16 +51 28.0 2.358 2.260 12.3/145 72.1 24.8 9.9 Apr. 2 04 24.39 +49 46.2 2.651 2.388 10.7/131 64.0 22.1 10.4 12 04 32.51 +48 34.9 2.929 2.515 9.9/119 56.3 19.4 10.8 m1 = 4.5 + 5 log Delta + 10.0 log r
Associate of the CBAT Syuichi Nakano 2013 Dec. 25