164P/Christensen 
   From 921 observations 1998 Jan. 24-2018 Oct. 13.(4) Kinoshita
   Epoch = 2019 Feb. 6.0 TT = JDT 2458520.5 
       T = 2018 May 31.38082 TT             peri.= 325.91654 
       e = 0.5396660                        node =  88.30646 (2000.0) 
       q = 1.6851553 AU                     incl.=  16.25313 
   a = 3.6607229 AU          n = 0.14071934         P = 7.00 years 
  m1 = 14.0 + 5log(delta) + 5.0log(r) 
  A. Node = E:12/20.9 JST  O:2018/08/03.3 JST  1.793 AU 
  D. Node = E:06/20.5 JST  O:2016/07/25.1 JST  4.692 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 01:20   11 16.68  +27 10.5   1.854   2.697  141.8   13.0   12.5/325.4   0.7/266   44 21  17.5  +69/285
01/28 01:20   11 16.15  +27 20.8   1.853   2.703  142.7   12.7   12.7/324.1   0.6/265   57 22  17.5  +70/286
01/29 01:10   11 15.59  +27 31.1   1.852   2.709  143.7   12.4   12.9/322.8   0.6/263   69 23  17.5  +69/284
01/30 01:10   11 15.00  +27 41.3   1.851   2.714  144.6   12.1   13.0/321.5   0.6/262   81 24  17.5  +70/285
01/31 01:10   11 14.39  +27 51.5   1.851   2.720  145.5   11.8   13.2/320.3   0.6/261   94 25  17.5  +71/286
02/01 01:10   11 13.75  +28 01.7   1.850   2.726  146.4   11.5   13.4/319.1   0.6/259  105 26  17.5  +72/287
02/02 01:00   11 13.10  +28 11.7   1.850   2.731  147.2   11.3   13.5/317.9   0.6/258  117 27  17.5  +71/285
02/03 01:00   11 12.41  +28 21.7   1.851   2.737  148.1   11.0   13.6/316.8   0.6/256  128 27  17.5  +72/285
02/04 01:00   11 11.70  +28 31.6   1.851   2.743  148.9   10.7   13.7/315.6   0.5/254  139 28  17.5  +73/286
02/05 00:50   11 10.98  +28 41.4   1.852   2.749  149.7   10.4   13.9/314.6   0.5/252  149 29  17.5  +72/284
02/06 00:50   11 10.23  +28 51.1   1.853   2.754  150.5   10.1   14.0/313.5   0.5/250  158  1  17.5  +73/285
02/07 00:50   11 09.46  +29 00.7   1.854   2.760  151.3    9.9   14.0/312.4   0.5/248  162  2  17.5  +74/286
02/08 00:50   11 08.66  +29 10.1   1.856   2.766  152.0    9.6   14.1/311.4   0.5/246  159  2  17.6  +75/287
02/09 00:40   11 07.86  +29 19.4   1.858   2.772  152.7    9.4   14.2/310.4   0.5/244  151  3  17.6  +74/285
02/10 00:40   11 07.03  +29 28.6   1.860   2.777  153.4    9.2   14.2/309.4   0.5/242  141  4  17.6  +75/286
02/11 00:40   11 06.19  +29 37.6   1.862   2.783  154.0    8.9   14.3/308.4   0.5/239  130  5  17.6  +76/287
02/12 00:30   11 05.34  +29 46.4   1.865   2.789  154.6    8.7   14.3/307.4   0.4/236  118  6  17.6  +75/285
02/13 00:30   11 04.46  +29 55.1   1.868   2.794  155.2    8.5   14.3/306.5   0.4/234  106  7  17.6  +76/286
02/14 00:30   11 03.57  +30 03.6   1.871   2.800  155.7    8.4   14.3/305.5   0.4/231   93  8  17.6  +77/288
02/15 00:20   11 02.68  +30 11.8   1.874   2.806  156.1    8.2   14.3/304.6   0.4/228   80  9  17.6  +76/285
02/16 00:20   11 01.77  +30 20.0   1.878   2.811  156.5    8.1   14.3/303.6   0.4/225   67 10  17.6  +77/286
02/17 00:20   11 00.85  +30 27.9   1.882   2.817  156.9    7.9   14.3/302.7   0.4/222   53 11  17.6  +78/288
02/18 00:10   10 59.92  +30 35.5   1.886   2.823  157.1    7.8   14.2/301.8   0.4/219   40 12  17.6  +77/285
02/19 00:10   10 58.99  +30 43.0   1.891   2.829  157.4    7.7   14.2/300.8   0.4/216   27 14  17.6  +78/287
02/20 00:10   10 58.04  +30 50.2   1.895   2.834  157.5    7.7   14.1/299.9   0.4/212   20 15  17.7  +79/288
02/22 00:00   10 56.14  +31 04.0   1.906   2.846  157.7    7.6   13.9/298.0   0.4/206   32 17  17.7  +79/287
02/23 00:00   10 55.19  +31 10.5   1.911   2.851  157.7    7.6   13.8/297.1   0.4/202   45 18  17.7  +80/289
02/24 00:00   10 54.22  +31 16.8   1.917   2.857  157.6    7.6   13.7/296.2   0.4/199   58 19  17.7  +81/291
02/25 00:00   10 53.26  +31 22.8   1.923   2.863  157.4    7.6   13.6/295.2   0.4/196   71 20  17.7  +82/294
02/25 23:50   10 52.31  +31 28.6   1.930   2.868  157.2    7.7   13.5/294.3   0.4/193   83 21  17.7  +81/290
02/26 23:50   10 51.35  +31 34.1   1.937   2.874  156.9    7.8   13.3/293.3   0.4/189   96 22  17.7  +82/292
02/27 23:50   10 50.39  +31 39.4   1.944   2.880  156.6    7.8   13.2/292.3   0.4/186  108 23  17.7  +83/295
inserted by FC2 system