357P Epoch 2017 Sept. 4.0 TT = JDT 2458000.5 T 2018 May 29.0481 TT MPC 106350 q 2.526323 (2000.0) P Q n 0.1044562 Peri. 1.5516 +0.6927535 -0.7170339 a 4.465257 Node 44.6090 +0.6604754 +0.5878352 e 0.434227 Incl. 6.3087 +0.2895942 +0.3745827 P 9.44 From 253 observations 2008-2017, mean residual 0".5. 357P/Hill Date TT R. A. (2000) Decl. Delta r Elong. Phase Mag. 2017 07 26 23 08.98 -14 20.0 2.419 3.260 139.6 11.6 19.0 2017 07 31 23 07.81 -14 34.9 2.360 3.241 144.6 10.5 18.9 2017 08 05 23 06.18 -14 51.7 2.306 3.222 149.6 9.2 18.9 2017 08 10 23 04.11 -15 10.0 2.257 3.203 154.7 7.8 18.8 2017 08 15 23 01.63 -15 29.3 2.215 3.185 159.7 6.3 18.8 2017 08 20 22 58.78 -15 49.1 2.179 3.166 164.6 4.9 18.7 2017 08 25 22 55.64 -16 08.8 2.150 3.148 168.8 3.6 18.6 2017 08 30 22 52.27 -16 27.9 2.128 3.129 171.3 2.8 18.6 2017 09 04 22 48.77 -16 45.6 2.112 3.111 170.5 3.1 18.6 2017 09 09 22 45.22 -17 01.3 2.103 3.093 167.0 4.2 18.5 2017 09 14 22 41.74 -17 14.7 2.102 3.075 162.3 5.7 18.5 2017 09 19 22 38.40 -17 25.2 2.106 3.057 157.2 7.3 18.5 2017 09 24 22 35.32 -17 32.4 2.118 3.040 151.9 8.9 18.5 2017 09 29 22 32.58 -17 36.0 2.135 3.022 146.6 10.5 18.5 2017 10 04 22 30.25 -17 36.0 2.158 3.005 141.4 12.0 18.5 2017 10 09 22 28.39 -17 32.3 2.186 2.988 136.2 13.4 18.5 2017 10 14 22 27.05 -17 24.9 2.218 2.971 131.1 14.7 18.5 2017 10 19 22 26.25 -17 13.9 2.255 2.954 126.1 15.8 18.5 2017 10 24 22 26.03 -16 59.3 2.295 2.937 121.3 16.8 18.5 2017 10 29 22 26.38 -16 41.3 2.339 2.921 116.5 17.7 18.6 2017 11 03 22 27.31 -16 20.1 2.385 2.904 111.9 18.5 18.6 2017 11 08 22 28.79 -15 55.9 2.433 2.888 107.4 19.1 18.6 2017 11 13 22 30.81 -15 28.7 2.483 2.873 103.0 19.6 18.6 2017 11 18 22 33.35 -14 58.8 2.534 2.857 98.8 20.0 18.7 2017 11 23 22 36.38 -14 26.3 2.586 2.842 94.6 20.3 18.7 2017 11 28 22 39.88 -13 51.3 2.639 2.827 90.6 20.4 18.7 2017 12 03 22 43.82 -13 14.0 2.691 2.812 86.7 20.5 18.7 2017 12 08 22 48.16 -12 34.5 2.744 2.797 82.8 20.5 18.8 2017 12 13 22 52.87 -11 52.9 2.796 2.783 79.1 20.3 18.8 2017 12 18 22 57.94 -11 09.4 2.847 2.769 75.5 20.1 18.8 2017 12 23 23 03.34 -10 23.9 2.898 2.756 71.9 19.8 18.8 2017 12 28 23 09.03 -09 36.7 2.947 2.742 68.4 19.5 18.9 2018 01 02 23 15.01 -08 47.8 2.995 2.729 65.0 19.1 18.9 2018 01 07 23 21.23 -07 57.3 3.042 2.716 61.7 18.6 18.9 2018 01 12 23 27.70 -07 05.5 3.087 2.704 58.4 18.0 18.9 2018 01 17 23 34.38 -06 12.2 3.130 2.692 55.2 17.5 18.9 2018 01 22 23 41.27 -05 17.8 3.172 2.680 52.0 16.8 18.9 2018 01 27 23 48.35 -04 22.2 3.211 2.669 48.9 16.1 18.9 2018 02 01 23 55.60 -03 25.6 3.248 2.658 45.9 15.4 19.0 2018 02 06 00 03.02 -02 28.2 3.284 2.648 42.9 14.7 19.0 2018 02 11 00 10.59 -01 30.0 3.317 2.637 39.9 13.9 19.0 2018 02 16 00 18.31 -00 31.1 3.348 2.628 37.0 13.1 19.0 2018 02 21 00 26.16 +00 28.3 3.376 2.618 34.2 12.3 19.0 2018 02 26 00 34.14 +01 28.1 3.403 2.609 31.4 11.4 19.0 2018 03 03 00 42.25 +02 28.2 3.427 2.601 28.6 10.5 19.0 2018 03 08 00 50.47 +03 28.4 3.449 2.593 25.9 9.6 19.0 2018 03 13 00 58.80 +04 28.6 3.469 2.585 23.2 8.7 19.0 2018 03 18 01 07.25 +05 28.7 3.486 2.578 20.6 7.8 19.0 2018 03 23 01 15.80 +06 28.6 3.501 2.571 17.9 6.9 19.0 H = 13.0, 2.5n = 8.0