164P/Christensen 
   From 889 observations 1998 Jan. 24-2017 June 22.(4) Kinoshita
   Epoch = 2018 Jan. 22.0 TT = JDT 2458140.5 
       T = 2018 May 31.42050 TT             peri.= 325.93525 
       e = 0.5397189                        node =  88.30752 (2000.0) 
       q = 1.6852299 AU                     incl.=  16.25255 
   a = 3.6613061 AU          n = 0.14068572         P = 7.01 years 
  m1 = 14.0 + 5log(delta) + 5.0log(r) 
  A. Node = E:12/20.6 JST  O:2018/08/03.3 JST  1.793 AU 
  D. Node = E:06/20.3 JST  O:2016/07/24.8 JST  4.693 AU 

2018   JST     R.A. (2000) D.C.    Delta     r    Elong. Phase   dMo./P.A.   Tail/P.A. M-O Ag   m1     H/A
01/12 18:20   22 28.59  -22 38.9   2.781   2.126   40.2   17.4   30.4/ 65.2   0.6/ 83   90 25  17.9  +15/ 47
01/13 18:20   22 30.58  -22 26.1   2.783   2.121   39.7   17.2   30.6/ 65.1   0.6/ 83   79 26  17.9  +15/ 48
01/14 18:20   22 32.57  -22 13.2   2.785   2.116   39.2   17.1   30.7/ 65.0   0.6/ 83   68 27  17.9  +15/ 48
01/15 18:20   22 34.57  -22 00.2   2.786   2.111   38.7   17.0   30.9/ 65.0   0.6/ 83   57 28  17.8  +15/ 49
01/16 18:20   22 36.58  -21 47.1   2.788   2.106   38.3   16.8   31.1/ 64.9   0.6/ 83   46 29  17.8  +15/ 49
01/17 18:20   22 38.60  -21 33.9   2.789   2.100   37.8   16.7   31.2/ 64.8   0.6/ 84   35  0  17.8  +15/ 50
01/18 18:20   22 40.62  -21 20.5   2.791   2.095   37.3   16.5   31.4/ 64.8   0.6/ 84   24  1  17.8  +15/ 50
01/19 18:20   22 42.65  -21 07.1   2.792   2.090   36.9   16.4   31.6/ 64.7   0.6/ 84   15  2  17.8  +14/ 51
01/20 18:20   22 44.69  -20 53.6   2.793   2.085   36.4   16.3   31.7/ 64.7   0.6/ 84   10  3  17.8  +14/ 51
01/21 18:20   22 46.73  -20 40.0   2.794   2.080   36.0   16.1   31.9/ 64.6   0.6/ 84   16  4  17.8  +14/ 52
01/22 18:20   22 48.78  -20 26.3   2.795   2.075   35.5   16.0   32.0/ 64.5   0.5/ 84   27  5  17.8  +14/ 52
01/23 18:20   22 50.84  -20 12.5   2.796   2.070   35.1   15.9   32.2/ 64.5   0.5/ 85   38  6  17.8  +14/ 53
01/24 18:20   22 52.90  -19 58.5   2.797   2.064   34.6   15.7   32.3/ 64.4   0.5/ 85   50  7  17.8  +14/ 53
01/25 18:20   22 54.96  -19 44.5   2.798   2.059   34.2   15.6   32.5/ 64.4   0.5/ 85   63  8  17.8  +14/ 54
01/26 18:20   22 57.03  -19 30.4   2.799   2.054   33.7   15.4   32.7/ 64.3   0.5/ 85   76  9  17.8  +13/ 54
01/27 18:20   22 59.11  -19 16.2   2.800   2.049   33.3   15.3   32.8/ 64.2   0.5/ 85   90 10  17.8  +13/ 55
01/28 18:20   23 01.20  -19 01.9   2.800   2.044   32.9   15.2   33.0/ 64.2   0.5/ 86  104 11  17.8  +13/ 55
01/29 18:20   23 03.29  -18 47.5   2.801   2.039   32.4   15.0   33.1/ 64.1   0.5/ 86  118 12  17.8  +13/ 56
01/30 18:20   23 05.38  -18 33.0   2.802   2.034   32.0   14.9   33.3/ 64.1   0.5/ 86  132 13  17.8  +13/ 56
01/31 18:20   23 07.48  -18 18.5   2.802   2.029   31.6   14.7   33.4/ 64.0   0.5/ 86  146 15  17.8  +13/ 57
02/01 18:20   23 09.59  -18 03.8   2.802   2.024   31.2   14.6   33.6/ 64.0   0.5/ 87  160 16  17.8  +13/ 57
02/02 18:20   23 11.70  -17 49.0   2.803   2.020   30.7   14.4   33.7/ 63.9   0.5/ 87  170 17  17.8  +12/ 58
02/03 18:20   23 13.82  -17 34.2   2.803   2.015   30.3   14.3   33.9/ 63.9   0.5/ 87  167 18  17.8  +12/ 58
02/04 18:20   23 15.94  -17 19.2   2.803   2.010   29.9   14.2   34.0/ 63.8   0.5/ 87  155 19  17.8  +12/ 58
02/05 18:20   23 18.07  -17 04.2   2.803   2.005   29.5   14.0   34.1/ 63.8   0.5/ 88  143 20  17.7  +12/ 59
02/06 18:20   23 20.20  -16 49.1   2.803   2.000   29.1   13.9   34.3/ 63.7   0.5/ 88  131 21  17.7  +12/ 59
02/07 18:20   23 22.34  -16 33.8   2.803   1.995   28.7   13.7   34.4/ 63.7   0.5/ 88  120 22  17.7  +12/ 60
02/08 18:20   23 24.48  -16 18.5   2.803   1.991   28.3   13.6   34.6/ 63.6   0.5/ 88  108 23  17.7  +12/ 60
02/09 18:20   23 26.63  -16 03.1   2.803   1.986   27.9   13.4   34.7/ 63.6   0.5/ 89   97 24  17.7  +11/ 61
02/10 18:20   23 28.79  -15 47.7   2.803   1.981   27.5   13.3   34.9/ 63.6   0.5/ 89   86 25  17.7  +11/ 61
02/11 18:20   23 30.95  -15 32.1   2.803   1.976   27.1   13.2   35.0/ 63.5   0.4/ 89   75 25  17.7  +11/ 62
02/12 18:20   23 33.11  -15 16.5   2.803   1.972   26.7   13.0   35.1/ 63.5   0.4/ 90   64 26  17.7  +11/ 62
inserted by FC2 system