361P/2017 S4 = 361P/2006 UR_111 (Spacewatch) Epoch 2017 Sept. 4.0 TT = JDT 2458000.5 T 2018 July 2.6096 TT MPC 106350 q 2.780165 (2000.0) P Q n 0.0896125 Peri. 219.2378 +0.4688088 -0.8781954 a 4.945655 Node 203.2778 +0.8587303 +0.4782779 e 0.437857 Incl. 13.8830 +0.2068829 +0.0048045 P 11.0 From 65 observations 2006-2017, mean residual 0".4. 361P/Spacewatch Elements MPC 106350 Date TT R. A. (2000) Decl. Delta r Elong. Phase Mag. 2017 09 04 23 56.30 +09 12.0 2.455 3.405 156.9 6.7 18.8 2017 09 09 23 53.91 +08 45.8 2.416 3.388 162.0 5.3 18.7 2017 09 14 23 51.32 +08 16.3 2.384 3.371 166.8 3.9 18.7 2017 09 19 23 48.60 +07 43.8 2.359 3.354 170.6 2.8 18.6 2017 09 24 23 45.82 +07 09.0 2.341 3.337 171.9 2.4 18.6 2017 09 29 23 43.08 +06 32.4 2.330 3.321 169.6 3.1 18.5 2017 10 04 23 40.44 +05 54.9 2.327 3.304 165.2 4.4 18.5 2017 10 09 23 37.99 +05 17.0 2.330 3.287 160.2 5.9 18.5 2017 10 14 23 35.80 +04 39.5 2.341 3.271 154.9 7.4 18.5 2017 10 19 23 33.93 +04 03.1 2.357 3.255 149.5 8.9 18.5 2017 10 24 23 32.43 +03 28.5 2.380 3.239 144.1 10.4 18.5 2017 10 29 23 31.37 +02 56.2 2.409 3.223 138.8 11.7 18.5 2017 11 03 23 30.77 +02 26.7 2.443 3.208 133.5 13.0 18.5 2017 11 08 23 30.65 +02 00.3 2.481 3.192 128.4 14.1 18.5 2017 11 13 23 31.02 +01 37.4 2.524 3.177 123.3 15.1 18.5 2017 11 18 23 31.88 +01 18.2 2.570 3.162 118.4 16.0 18.5 2017 11 23 23 33.25 +01 02.7 2.619 3.147 113.6 16.7 18.6 2017 11 28 23 35.10 +00 51.0 2.670 3.132 108.9 17.3 18.6 2017 12 03 23 37.42 +00 43.1 2.724 3.118 104.3 17.8 18.6 2017 12 08 23 40.19 +00 38.9 2.779 3.103 99.9 18.2 18.6 2017 12 13 23 43.40 +00 38.2 2.835 3.089 95.5 18.5 18.7 2017 12 18 23 47.01 +00 41.0 2.892 3.075 91.3 18.7 18.7 2017 12 23 23 51.01 +00 47.2 2.949 3.062 87.2 18.7 18.7 2017 12 28 23 55.38 +00 56.4 3.005 3.048 83.1 18.7 18.7 2018 01 02 00 00.10 +01 08.6 3.062 3.035 79.2 18.6 18.8 2018 01 07 00 05.12 +01 23.5 3.117 3.022 75.4 18.3 18.8 2018 01 12 00 10.45 +01 40.9 3.172 3.010 71.6 18.1 18.8 2018 01 17 00 16.06 +02 00.7 3.225 2.997 67.9 17.7 18.8 2018 01 22 00 21.93 +02 22.7 3.277 2.985 64.3 17.3 18.8 2018 01 27 00 28.05 +02 46.5 3.327 2.974 60.8 16.8 18.8 2018 02 01 00 34.39 +03 12.2 3.375 2.962 57.3 16.3 18.9 2018 02 06 00 40.94 +03 39.4 3.421 2.951 54.0 15.7 18.9 2018 02 11 00 47.69 +04 07.9 3.465 2.940 50.6 15.0 18.9 2018 02 16 00 54.63 +04 37.6 3.507 2.929 47.4 14.4 18.9 2018 02 21 01 01.75 +05 08.3 3.546 2.919 44.2 13.7 18.9 2018 02 26 01 09.03 +05 39.9 3.583 2.909 41.0 12.9 18.9 2018 03 03 01 16.46 +06 12.0 3.617 2.900 37.9 12.1 18.9 2018 03 08 01 24.04 +06 44.6 3.648 2.890 34.9 11.3 18.9 2018 03 13 01 31.75 +07 17.5 3.677 2.881 31.9 10.5 18.9 2018 03 18 01 39.60 +07 50.4 3.703 2.873 28.9 9.6 18.9 2018 03 23 01 47.57 +08 23.4 3.727 2.865 26.0 8.8 18.9 H = 11.5, 2.5n = 10.0