26P/Grigg-Skjellerup 
   From 480 observations 1991 Sept. 9-2018 Feb. 14.(21) Kinoshita
   Epoch = 2018 Dec. 28.0 TT = JDT 2458480.5 
       T = 2018 Oct. 1.81748 TT             peri.=   2.19651 
       e = 0.6409527                        node = 211.53280 (2000.0) 
       q = 1.0822658 AU                     incl.=  22.44942 
   a = 3.0142705 AU          n = 0.18833487         P = 5.23 years 
  m2 = 16.7 + 5log(delta) + 5.0log(r) 
  A. Node = E:04/22.6 JST  O:2018/09/30.2 JST  1.083 AU 
  D. Node = E:10/25.6 JST  O:2021/04/04.1 JST  4.940 AU 

18/19  JST     R.A. (2000) D.C.    Delta     r    Elong. Phase   dMo./P.A.   Tail/P.A. M-O Ag   m2     H/A
12/08 17:20   17 48.65  -11 18.7   2.299   1.383   16.4   11.6   51.3/ 85.1   0.5/ 45   10  1  19.2   +9/ 69
12/09 17:20   17 52.13  -11 14.2   2.307   1.390   16.4   11.5   51.0/ 84.8   0.5/ 44   16  2  19.2   +9/ 69
12/10 17:20   17 55.58  -11 09.5   2.315   1.398   16.4   11.5   50.7/ 84.6   0.5/ 43   26  3  19.2   +9/ 69
12/11 17:20   17 59.01  -11 04.7   2.323   1.405   16.3   11.4   50.5/ 84.4   0.5/ 42   37  4  19.3   +9/ 70
12/12 17:20   18 02.42  -10 59.7   2.330   1.413   16.3   11.3   50.2/ 84.1   0.5/ 41   47  5  19.3   +9/ 70
12/13 17:20   18 05.81  -10 54.5   2.338   1.420   16.3   11.2   49.9/ 83.9   0.5/ 40   58  5  19.3   +9/ 70
12/14 17:20   18 09.17  -10 49.1   2.347   1.428   16.2   11.1   49.6/ 83.7   0.5/ 39   69  6  19.3   +9/ 70
12/15 17:20   18 12.52  -10 43.6   2.355   1.436   16.2   11.0   49.3/ 83.5   0.4/ 38   80  7  19.3   +9/ 70
12/16 17:20   18 15.84  -10 37.9   2.363   1.443   16.1   10.9   49.0/ 83.2   0.4/ 37   91  8  19.4   +9/ 70
12/17 17:20   18 19.14  -10 32.0   2.371   1.451   16.1   10.8   48.7/ 83.0   0.4/ 36  102  9  19.4   +9/ 71
12/18 17:20   18 22.42  -10 26.0   2.379   1.459   16.0   10.7   48.5/ 82.8   0.4/ 35  114 10  19.4   +9/ 71
12/19 17:20   18 25.68  -10 19.9   2.388   1.467   15.9   10.6   48.2/ 82.6   0.4/ 34  126 11  19.4   +9/ 71
12/20 17:20   18 28.92  -10 13.6   2.396   1.474   15.9   10.5   47.9/ 82.3   0.4/ 33  139 12  19.4   +9/ 71
12/21 17:20   18 32.13  -10 07.1   2.404   1.482   15.8   10.4   47.6/ 82.1   0.4/ 32  151 13  19.5   +8/ 71
12/22 17:20   18 35.32  -10 00.5   2.413   1.490   15.8   10.3   47.3/ 81.9   0.4/ 31  163 14  19.5   +8/ 71
12/23 17:20   18 38.49  -09 53.8   2.421   1.498   15.7   10.2   47.1/ 81.7   0.4/ 29  168 15  19.5   +8/ 72
12/24 17:20   18 41.64  -09 46.9   2.430   1.506   15.6   10.1   46.8/ 81.5   0.4/ 28  161 17  19.5   +8/ 72
12/25 17:20   18 44.77  -09 40.0   2.438   1.514   15.6   10.0   46.5/ 81.2   0.4/ 27  149 18  19.5   +8/ 72
12/26 17:20   18 47.88  -09 32.8   2.447   1.522   15.5    9.9   46.2/ 81.0   0.4/ 26  135 19  19.6   +8/ 72
12/27 17:20   18 50.96  -09 25.6   2.455   1.530   15.4    9.9   45.9/ 80.8   0.4/ 25  122 20  19.6   +8/ 73
12/28 17:20   18 54.03  -09 18.2   2.464   1.538   15.4    9.8   45.7/ 80.6   0.4/ 24  109 21  19.6   +8/ 73
12/29 17:20   18 57.07  -09 10.7   2.473   1.546   15.3    9.7   45.4/ 80.4   0.4/ 23   96 22  19.6   +8/ 73
12/30 17:20   19 00.09  -09 03.1   2.481   1.554   15.2    9.6   45.1/ 80.2   0.4/ 21   84 23  19.6   +8/ 73
12/31 17:20   19 03.09  -08 55.3   2.490   1.562   15.2    9.5   44.9/ 80.0   0.4/ 20   71 24  19.6   +8/ 74
01/01 17:20   19 06.07  -08 47.5   2.499   1.570   15.1    9.4   44.6/ 79.8   0.4/ 19   60 25  19.7   +7/ 74
01/02 17:20   19 09.03  -08 39.5   2.507   1.578   15.0    9.3   44.3/ 79.6   0.4/ 18   48 26  19.7   +7/ 74
01/03 17:20   19 11.97  -08 31.5   2.516   1.587   15.0    9.2   44.1/ 79.4   0.4/ 16   37 27  19.7   +7/ 74
01/04 17:20   19 14.89  -08 23.3   2.525   1.595   14.9    9.1   43.8/ 79.2   0.3/ 15   27 28  19.7   +7/ 75
01/05 17:20   19 17.79  -08 15.0   2.533   1.603   14.9    9.0   43.5/ 79.0   0.3/ 14   18 29  19.7   +7/ 75
01/06 17:20   19 20.66  -08 06.6   2.542   1.611   14.8    9.0   43.3/ 78.8   0.3/ 12   13  0  19.8   +7/ 75
01/07 17:20   19 23.52  -07 58.1   2.551   1.619   14.7    8.9   43.0/ 78.6   0.3/ 11   17  1  19.8   +7/ 75
01/08 17:20   19 26.36  -07 49.6   2.559   1.627   14.7    8.8   42.7/ 78.4   0.3/ 10   26  2  19.8   +7/ 76
inserted by FC2 system