123P/West-Hartley 
   From 2151 observations 1989 Mar. 14-2017 Sept. 27.(5) Kinoshita
   Epoch = 2018 Sept. 19.0 TT = JDT 2458380.5 
       T = 2019 Feb. 5.09578 TT             peri.= 103.00351 
       e = 0.4487257                        node =  46.50024 (2000.0) 
       q = 2.1268891 AU                     incl.=  15.35967 
   a = 3.8581324 AU          n = 0.13005839         P = 7.58 years 
  m1 = 7.0 + 5log(delta) + 20.0log(r) 
  A. Node = E:11/09.6 JST  O:2018/01/11.7 JST  3.427 AU 
  D. Node = E:05/07.7 JST  O:2019/10/09.0 JST  2.799 AU 

2018   JST     R.A. (2000) D.C.    Delta     r    Elong. Phase   dMo./P.A.   Tail/P.A. M-O Ag   m1     H/A
09/09 03:30   07 57.58  +30 39.9   2.919   2.418   51.1   18.9   28.1/ 92.8   0.6/289   38 28  17.0  +25/249
09/10 03:30   07 59.75  +30 38.4   2.907   2.414   51.6   19.1   28.1/ 92.9   0.6/290   51  0  17.0  +26/249
09/11 03:30   08 01.92  +30 37.0   2.894   2.411   52.1   19.3   28.1/ 93.0   0.6/290   65  1  16.9  +26/250
09/12 03:30   08 04.09  +30 35.4   2.881   2.407   52.6   19.4   28.1/ 93.2   0.6/290   79  2  16.9  +26/250
09/13 03:30   08 06.26  +30 33.8   2.869   2.404   53.1   19.6   28.1/ 93.3   0.6/290   92  3  16.9  +27/250
09/14 03:30   08 08.43  +30 32.1   2.856   2.400   53.6   19.7   28.1/ 93.4   0.7/290  105  4  16.9  +27/250
09/15 03:30   08 10.60  +30 30.4   2.844   2.397   54.1   19.9   28.1/ 93.5   0.7/290  117  5  16.9  +27/250
09/16 03:30   08 12.77  +30 28.6   2.831   2.394   54.6   20.0   28.0/ 93.6   0.7/290  129  6  16.8  +28/251
09/17 03:30   08 14.93  +30 26.7   2.818   2.390   55.1   20.2   28.0/ 93.8   0.7/290  140  7  16.8  +28/251
09/18 03:30   08 17.09  +30 24.8   2.805   2.387   55.6   20.3   28.0/ 93.9   0.7/290  151  8  16.8  +28/251
09/19 03:30   08 19.26  +30 22.9   2.793   2.383   56.1   20.5   28.0/ 94.0   0.7/291  161  9  16.8  +29/251
09/20 03:30   08 21.41  +30 20.8   2.780   2.380   56.6   20.6   28.0/ 94.1   0.7/291  168 10  16.8  +29/252
09/21 03:30   08 23.57  +30 18.8   2.767   2.377   57.1   20.8   28.0/ 94.2   0.7/291  167 11  16.7  +29/252
09/22 03:20   08 25.71  +30 16.6   2.754   2.374   57.6   20.9   28.0/ 94.3   0.7/291  158 12  16.7  +28/251
09/23 03:20   08 27.87  +30 14.5   2.741   2.370   58.2   21.1   28.0/ 94.4   0.7/291  148 13  16.7  +28/251
09/24 03:20   08 30.02  +30 12.2   2.728   2.367   58.7   21.2   28.0/ 94.5   0.7/291  137 13  16.7  +28/251
09/25 03:20   08 32.17  +30 10.0   2.715   2.364   59.2   21.4   27.9/ 94.6   0.7/291  125 14  16.6  +29/252
09/26 03:20   08 34.32  +30 07.6   2.702   2.361   59.7   21.5   27.9/ 94.7   0.8/291  114 15  16.6  +29/252
09/27 03:20   08 36.46  +30 05.3   2.689   2.357   60.2   21.7   27.9/ 94.8   0.8/291  102 16  16.6  +29/252
09/28 03:20   08 38.60  +30 02.9   2.676   2.354   60.7   21.8   27.9/ 94.9   0.8/291   89 17  16.6  +30/252
09/29 03:20   08 40.74  +30 00.4   2.663   2.351   61.2   21.9   27.9/ 95.0   0.8/291   77 18  16.6  +30/253
09/30 03:20   08 42.88  +29 57.9   2.650   2.348   61.7   22.1   27.9/ 95.1   0.8/292   64 19  16.5  +30/253
10/01 03:20   08 45.01  +29 55.4   2.637   2.345   62.2   22.2   27.8/ 95.2   0.8/292   51 20  16.5  +31/253
10/02 03:20   08 47.14  +29 52.8   2.624   2.341   62.7   22.3   27.8/ 95.3   0.8/292   39 21  16.5  +31/253
10/03 03:20   08 49.27  +29 50.2   2.611   2.338   63.3   22.5   27.8/ 95.3   0.8/292   26 22  16.5  +31/254
10/04 03:20   08 51.40  +29 47.5   2.598   2.335   63.8   22.6   27.7/ 95.4   0.8/292   15 24  16.4  +32/254
10/05 03:20   08 53.52  +29 44.9   2.585   2.332   64.3   22.7   27.7/ 95.5   0.8/292   12 25  16.4  +32/254
10/06 03:20   08 55.63  +29 42.1   2.572   2.329   64.8   22.9   27.7/ 95.6   0.8/292   21 26  16.4  +32/254
10/07 03:20   08 57.75  +29 39.4   2.559   2.326   65.3   23.0   27.6/ 95.6   0.8/292   34 27  16.4  +33/254
10/08 03:10   08 59.84  +29 36.7   2.546   2.323   65.8   23.1   27.6/ 95.7   0.9/292   47 28  16.4  +31/254
10/09 03:10   09 01.95  +29 33.9   2.533   2.320   66.4   23.2   27.6/ 95.7   0.9/292   60 29  16.3  +31/254
inserted by FC2 system