198P/ODAS From 184 observations 1998 Dec. 15-2006 Mar. 24. Kinoshita Epoch = 2019 Feb. 6.0 TT = JDT 2458520.5 T = 2018 Dec. 14.05219 TT peri.= 69.28441 e = 0.4432482 node = 358.28711 (2000.0) q = 2.0059329 AU incl.= 1.33779 a = 3.6029214 AU n = 0.14411921 P = 6.84 years m1 = 13.5 + 5log(delta) + 10.0log(r) A. Node = E:09/22.0 JST O:2018/06/02.8 JST 2.503 AU D. Node = E:03/19.8 JST O:2020/01/25.4 JST 3.433 AU 2019 JST R.A. (2000) D.C. Delta r Elong. Phase dMo./P.A. Tail/P.A. M-O Ag m1 H/A 01/27 21:50 03 46.84 +21 50.9 1.449 2.038 112.3 26.6 16.2/ 80.0 1.7/ 78 153 22 17.4 +55/ 78 01/28 21:50 03 47.98 +21 53.7 1.460 2.039 111.6 26.7 16.5/ 80.1 1.7/ 78 165 23 17.4 +54/ 79 01/29 21:50 03 49.15 +21 56.6 1.471 2.041 110.8 26.8 16.8/ 80.1 1.7/ 78 174 24 17.4 +54/ 80 01/30 21:50 03 50.34 +21 59.4 1.482 2.042 110.1 26.9 17.2/ 80.1 1.7/ 78 167 25 17.5 +53/ 80 01/31 21:50 03 51.56 +22 02.4 1.493 2.044 109.4 27.1 17.5/ 80.2 1.6/ 78 156 26 17.5 +53/ 81 02/01 21:50 03 52.80 +22 05.3 1.505 2.045 108.6 27.2 17.8/ 80.3 1.6/ 79 144 26 17.5 +52/ 81 02/02 21:50 03 54.06 +22 08.3 1.516 2.047 107.9 27.3 18.1/ 80.3 1.6/ 79 133 27 17.5 +52/ 82 02/03 21:50 03 55.35 +22 11.3 1.527 2.048 107.2 27.4 18.4/ 80.4 1.6/ 79 121 28 17.5 +51/ 82 02/04 21:40 03 56.65 +22 14.4 1.539 2.050 106.5 27.5 18.7/ 80.5 1.6/ 79 110 29 17.6 +53/ 81 02/05 21:40 03 57.98 +22 17.5 1.551 2.052 105.8 27.5 19.0/ 80.5 1.6/ 79 99 1 17.6 +52/ 82 02/06 21:40 03 59.34 +22 20.6 1.562 2.053 105.1 27.6 19.3/ 80.6 1.6/ 79 87 1 17.6 +52/ 82 02/07 21:40 04 00.71 +22 23.7 1.574 2.055 104.4 27.7 19.6/ 80.7 1.6/ 79 76 2 17.6 +51/ 83 02/08 21:40 04 02.11 +22 26.9 1.586 2.057 103.7 27.8 19.9/ 80.8 1.6/ 79 64 3 17.6 +51/ 83 02/09 21:40 04 03.52 +22 30.0 1.598 2.059 103.1 27.8 20.2/ 80.9 1.6/ 79 53 4 17.7 +50/ 84 02/10 21:40 04 04.96 +22 33.2 1.609 2.060 102.4 27.9 20.4/ 80.9 1.6/ 79 41 5 17.7 +50/ 84 02/11 21:40 04 06.42 +22 36.4 1.621 2.062 101.7 27.9 20.7/ 81.0 1.6/ 79 29 6 17.7 +49/ 85 02/12 21:40 04 07.90 +22 39.6 1.633 2.064 101.0 28.0 20.9/ 81.1 1.6/ 80 17 7 17.7 +49/ 85 02/13 21:40 04 09.39 +22 42.8 1.646 2.066 100.4 28.0 21.2/ 81.2 1.6/ 80 7 8 17.7 +48/ 86 02/14 21:40 04 10.90 +22 46.0 1.658 2.068 99.7 28.1 21.4/ 81.3 1.5/ 80 11 9 17.8 +48/ 86 02/15 21:40 04 12.44 +22 49.2 1.670 2.070 99.1 28.1 21.7/ 81.5 1.5/ 80 24 10 17.8 +47/ 87 02/16 21:40 04 13.99 +22 52.4 1.682 2.072 98.4 28.1 21.9/ 81.6 1.5/ 80 38 11 17.8 +47/ 87 02/17 21:30 04 15.54 +22 55.5 1.694 2.074 97.8 28.2 22.1/ 81.7 1.5/ 80 52 12 17.8 +48/ 86 02/18 21:30 04 17.13 +22 58.7 1.707 2.076 97.1 28.2 22.3/ 81.8 1.5/ 80 67 13 17.8 +48/ 86 02/19 21:30 04 18.73 +23 01.9 1.719 2.078 96.5 28.2 22.5/ 81.9 1.5/ 80 82 14 17.9 +47/ 87 02/20 21:30 04 20.34 +23 05.0 1.732 2.080 95.9 28.2 22.7/ 82.0 1.5/ 81 97 16 17.9 +47/ 87 02/21 21:30 04 21.97 +23 08.1 1.744 2.082 95.2 28.2 22.9/ 82.2 1.5/ 81 111 17 17.9 +46/ 88 02/22 21:30 04 23.62 +23 11.2 1.757 2.084 94.6 28.2 23.1/ 82.3 1.5/ 81 125 18 17.9 +46/ 88 02/23 21:30 04 25.28 +23 14.3 1.769 2.086 94.0 28.2 23.3/ 82.4 1.5/ 81 139 19 17.9 +46/ 88 02/24 21:30 04 26.96 +23 17.3 1.782 2.088 93.4 28.2 23.5/ 82.6 1.4/ 81 152 20 18.0 +45/ 89 02/25 21:30 04 28.65 +23 20.3 1.794 2.091 92.8 28.2 23.7/ 82.7 1.4/ 81 165 21 18.0 +45/ 89 02/26 21:30 04 30.36 +23 23.3 1.807 2.093 92.2 28.2 23.9/ 82.8 1.4/ 81 174 22 18.0 +44/ 90 02/27 21:30 04 32.08 +23 26.2 1.820 2.095 91.5 28.2 24.0/ 83.0 1.4/ 81 168 23 18.0 +44/ 90