353P Epoch 2017 Sept. 4.0 TT = JDT 2458000.5 T 2017 Dec. 20.9529 TT MPC 106350 q 2.214004 (2000.0) P Q n 0.1157317 Peri. 230.3945 +0.9111157 +0.0742713 a 4.170306 Node 121.5749 -0.0269328 +0.9922559 e 0.469103 Incl. 28.4147 -0.4112698 +0.0995588 P 8.52 From 106 observations 2008-2017, mean residual 0".5. 353P/McNaught Date TT R. A. (2000) Decl. Delta r Elong. Phase Mag. 2017 06 16 20 35.56 -11 35.5 1.811 2.639 136.1 15.5 19.1 2017 06 21 20 35.16 -12 21.6 1.749 2.619 141.2 14.1 19.0 2017 06 26 20 34.17 -13 14.3 1.692 2.600 146.5 12.5 18.9 2017 07 01 20 32.62 -14 13.3 1.640 2.582 151.9 10.7 18.8 2017 07 06 20 30.52 -15 18.6 1.594 2.563 157.5 8.7 18.6 2017 07 11 20 27.92 -16 29.5 1.555 2.545 163.2 6.6 18.5 2017 07 16 20 24.88 -17 45.3 1.522 2.527 169.1 4.4 18.5 2017 07 21 20 21.48 -19 04.9 1.496 2.510 175.0 2.0 18.4 2017 07 26 20 17.82 -20 27.2 1.477 2.492 178.8 0.5 18.3 2017 07 31 20 14.04 -21 50.5 1.465 2.476 172.8 2.9 18.2 2017 08 05 20 10.27 -23 13.6 1.461 2.459 166.8 5.4 18.2 2017 08 10 20 06.65 -24 34.9 1.463 2.443 160.8 7.8 18.1 2017 08 15 20 03.33 -25 53.2 1.472 2.428 154.9 10.2 18.1 2017 08 20 20 00.43 -27 07.3 1.487 2.412 149.1 12.4 18.1 2017 08 25 19 58.09 -28 16.5 1.508 2.398 143.5 14.5 18.1 2017 08 30 19 56.42 -29 20.2 1.534 2.383 138.1 16.4 18.1 2017 09 04 19 55.48 -30 18.0 1.565 2.369 132.9 18.2 18.1 2017 09 09 19 55.34 -31 09.8 1.600 2.356 127.8 19.7 18.1 2017 09 14 19 56.03 -31 55.6 1.639 2.343 123.0 21.1 18.1 2017 09 19 19 57.55 -32 35.6 1.680 2.331 118.3 22.3 18.1 2017 09 24 19 59.92 -33 09.7 1.724 2.319 113.9 23.3 18.2 2017 09 29 20 03.12 -33 38.4 1.770 2.308 109.6 24.1 18.2 2017 10 04 20 07.11 -34 01.7 1.818 2.297 105.5 24.8 18.2 2017 10 09 20 11.86 -34 19.9 1.867 2.287 101.6 25.3 18.2 2017 10 14 20 17.31 -34 33.1 1.917 2.278 97.8 25.7 18.3 2017 10 19 20 23.43 -34 41.5 1.967 2.269 94.2 26.0 18.3 2017 10 24 20 30.17 -34 45.2 2.018 2.261 90.7 26.1 18.3 2017 10 29 20 37.48 -34 44.3 2.069 2.253 87.4 26.1 18.4 2017 11 03 20 45.31 -34 39.1 2.119 2.246 84.1 26.1 18.4 2017 11 08 20 53.59 -34 29.5 2.169 2.240 81.0 25.9 18.4 2017 11 13 21 02.28 -34 15.6 2.219 2.234 78.0 25.7 18.5 2017 11 18 21 11.34 -33 57.6 2.269 2.229 75.1 25.4 18.5 2017 11 23 21 20.72 -33 35.5 2.317 2.225 72.3 25.0 18.5 2017 11 28 21 30.38 -33 09.5 2.365 2.221 69.5 24.6 18.6 2017 12 03 21 40.28 -32 39.7 2.412 2.219 66.9 24.1 18.6 2017 12 08 21 50.38 -32 06.2 2.458 2.216 64.3 23.6 18.6 2017 12 13 22 00.64 -31 29.2 2.503 2.215 61.8 23.1 18.7 2017 12 18 22 11.03 -30 48.8 2.548 2.214 59.3 22.5 18.7 2017 12 23 22 21.54 -30 05.2 2.591 2.214 57.0 21.9 18.7 2017 12 28 22 32.13 -29 18.7 2.633 2.215 54.7 21.2 18.8 2018 01 02 22 42.78 -28 29.3 2.674 2.216 52.4 20.6 18.8 2018 01 07 22 53.46 -27 37.4 2.714 2.218 50.2 19.9 18.9 2018 01 12 23 04.16 -26 43.0 2.753 2.221 48.1 19.2 18.9 2018 01 17 23 14.88 -25 46.5 2.792 2.224 46.0 18.6 18.9 2018 01 22 23 25.59 -24 48.1 2.829 2.228 44.0 17.9 19.0 2018 01 27 23 36.28 -23 48.1 2.865 2.233 42.1 17.2 19.0 2018 02 01 23 46.95 -22 46.6 2.900 2.239 40.1 16.5 19.1 2018 02 06 23 57.59 -21 44.0 2.934 2.245 38.3 15.8 19.1 2018 02 11 00 08.19 -20 40.4 2.967 2.252 36.5 15.1 19.1 2018 02 16 00 18.75 -19 36.2 3.000 2.259 34.7 14.4 19.2 2018 02 21 00 29.27 -18 31.5 3.031 2.267 33.1 13.8 19.2 2018 02 26 00 39.73 -17 26.6 3.061 2.276 31.4 13.1 19.3 2018 03 03 00 50.15 -16 21.8 3.091 2.286 29.9 12.5 19.3 2018 03 08 01 00.51 -15 17.3 3.119 2.295 28.4 11.9 19.4 2018 03 13 01 10.82 -14 13.3 3.147 2.306 27.0 11.3 19.4 2018 03 18 01 21.08 -13 10.0 3.173 2.317 25.7 10.7 19.5 2018 03 23 01 31.28 -12 07.6 3.199 2.329 24.5 10.2 19.5 H = 11.5, 2.5n = 15.0