164P/Christensen 
   From 383 observations 1998 Jan. 24-2011 Dec. 9. Kinoshita
   Epoch = 2017 July 6.0 TT = JDT 2457940.5 
       T = 2018 May 31.44346 TT             peri.= 325.94617 
       e = 0.5396628                        node =  88.31008 (2000.0) 
       q = 1.6850772 AU                     incl.=  16.25297 
   a = 3.6605282 AU          n = 0.14073057         P = 7.00 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:06/20.0 JST  O:2016/07/24.8 JST  4.693 AU 

2017   JST     R.A. (2000) D.C.    Delta     r    Elong. Phase   dMo./P.A.   Tail/P.A. M-O Ag   m1     H/A
06/26 01:40   21 15.49  -28 42.0   2.408   3.252  139.9   11.6    8.4/206.9   0.5/267  158  2  18.5  +24/341
06/27 01:40   21 15.20  -28 49.4   2.394   3.247  140.9   11.4    8.6/208.4   0.5/268  166  3  18.5  +24/342
06/28 01:40   21 14.89  -28 57.0   2.380   3.241  141.9   11.2    8.8/209.8   0.4/268  162  4  18.4  +24/343
06/29 01:40   21 14.56  -29 04.6   2.367   3.236  142.8   10.9    9.0/211.2   0.4/269  151  5  18.4  +24/344
06/30 01:30   21 14.20  -29 12.3   2.354   3.231  143.8   10.7    9.3/212.5   0.4/270  139  6  18.4  +24/343
07/01 01:30   21 13.82  -29 20.1   2.341   3.225  144.8   10.5    9.5/213.7   0.4/271  127  7  18.4  +24/344
07/02 01:30   21 13.42  -29 28.0   2.328   3.220  145.7   10.2    9.7/215.0   0.4/272  115  8  18.4  +24/345
07/03 01:30   21 12.99  -29 35.9   2.316   3.215  146.7   10.0    9.9/216.1   0.4/273  103  9  18.4  +24/346
07/04 01:30   21 12.54  -29 43.9   2.304   3.209  147.7    9.8   10.2/217.2   0.4/274   91 10  18.3  +24/347
07/05 01:20   21 12.07  -29 52.0   2.292   3.204  148.6    9.5   10.4/218.3   0.4/275   79 11  18.3  +24/346
07/06 01:20   21 11.58  -30 00.1   2.280   3.198  149.6    9.3   10.6/219.3   0.4/276   68 12  18.3  +24/347
07/07 01:20   21 11.06  -30 08.3   2.269   3.193  150.5    9.0   10.8/220.3   0.4/277   56 12  18.3  +24/348
07/08 01:20   21 10.52  -30 16.5   2.257   3.188  151.4    8.8   11.0/221.2   0.4/278   45 13  18.3  +24/349
07/09 01:20   21 09.96  -30 24.8   2.246   3.182  152.4    8.5   11.2/222.1   0.4/280   34 14  18.3  +24/350
07/10 01:20   21 09.38  -30 33.2   2.236   3.177  153.3    8.3   11.4/223.0   0.4/281   24 15  18.3  +24/351
07/11 01:10   21 08.78  -30 41.5   2.225   3.171  154.2    8.0   11.7/223.9   0.3/283   16 16  18.2  +24/350
07/12 01:10   21 08.15  -30 49.9   2.215   3.166  155.1    7.8   11.8/224.7   0.3/284   16 17  18.2  +24/351
07/13 01:10   21 07.50  -30 58.3   2.205   3.161  156.0    7.5   12.0/225.6   0.3/286   24 18  18.2  +24/352
07/14 01:10   21 06.83  -31 06.7   2.195   3.155  156.8    7.3   12.2/226.4   0.3/288   35 19  18.2  +24/353
07/15 01:10   21 06.14  -31 15.1   2.186   3.150  157.7    7.0   12.4/227.1   0.3/290   47 20  18.2  +24/354
07/16 01:00   21 05.43  -31 23.5   2.177   3.144  158.5    6.8   12.6/227.9   0.3/292   59 21  18.2  +23/353
07/17 01:00   21 04.70  -31 31.9   2.168   3.139  159.2    6.6   12.8/228.6   0.3/295   73 22  18.2  +23/354
07/18 01:00   21 03.95  -31 40.4   2.159   3.133  160.0    6.4   12.9/229.4   0.3/297   86 23  18.2  +23/355
07/19 01:00   21 03.18  -31 48.8   2.151   3.128  160.7    6.2   13.1/230.1   0.3/300  100 24  18.1  +23/356
07/20 01:00   21 02.40  -31 57.1   2.142   3.122  161.4    6.0   13.2/230.8   0.3/303  114 25  18.1  +23/358
07/21 01:00   21 01.59  -32 05.5   2.134   3.117  162.0    5.8   13.3/231.5   0.3/306  128 26  18.1  +23/359
07/22 00:50   21 00.77  -32 13.7   2.127   3.111  162.6    5.6   13.5/232.1   0.3/309  142 27  18.1  +23/357
07/23 00:50   20 59.94  -32 22.0   2.120   3.106  163.2    5.4   13.6/232.8   0.2/313  155 29  18.1  +23/359
07/24 00:50   20 59.08  -32 30.2   2.113   3.100  163.6    5.3   13.7/233.4   0.2/317  163  0  18.1  +22/360
07/25 00:50   20 58.21  -32 38.3   2.106   3.095  164.0    5.2   13.8/234.1   0.2/321  161  1  18.1  +22/  1
07/26 00:50   20 57.33  -32 46.4   2.099   3.089  164.3    5.1   13.9/234.7   0.2/325  151  2  18.1  +22/  2
inserted by FC2 system