21P/Giacobini-Zinner 
   From 2472 observations 2011 Aug. 6-2019 Apr. 11.(16) Kinoshita
   Epoch = 2020 Feb. 1.0 TT = JDT 2458880.5 
       T = 2018 Sept. 10.31012 TT           peri.= 172.84789 
       e = 0.7105212                        node = 195.37433 (2000.0) 
       q = 1.0121454 AU                     incl.=  32.00524 
   a = 3.4964405 AU          n = 0.15075262         P = 6.54 years 
  m1 = 13.5 + 5log(delta) + 5.0log(r) 
  A. Node = E:04/05.4 JST  O:2015/12/16.5 JST  5.869 AU 
  D. Node = E:10/09.6 JST  O:2018/09/16.3 JST  1.015 AU 

2020   JST     R.A. (2000) D.C.    Delta     r    Elong. Phase   dMo./P.A.   Tail/P.A. M-O Ag   m1     H/A
01/12 02:50   11 00.84  -17 28.5   3.900   4.407  115.0   11.7    4.9/261.9   0.3/305   55 16  19.7  +36/346
01/13 02:50   11 00.50  -17 29.2   3.891   4.412  116.0   11.6    5.1/263.8   0.3/306   43 17  19.7  +37/347
01/14 02:40   11 00.15  -17 29.7   3.882   4.417  117.0   11.4    5.3/265.6   0.3/306   33 18  19.7  +36/346
01/15 02:40   10 59.78  -17 30.1   3.874   4.422  118.0   11.3    5.5/267.2   0.3/307   28 19  19.7  +36/347
01/16 02:40   10 59.40  -17 30.4   3.865   4.426  119.0   11.2    5.7/268.8   0.3/307   28 20  19.7  +37/348
01/17 02:40   10 59.00  -17 30.5   3.857   4.431  120.0   11.1    5.9/270.2   0.3/308   35 21  19.7  +37/349
01/18 02:40   10 58.59  -17 30.5   3.849   4.436  121.0   11.0    6.1/271.6   0.3/309   45 22  19.7  +37/351
01/19 02:30   10 58.16  -17 30.3   3.841   4.441  122.0   10.8    6.3/272.9   0.3/309   56 23  19.7  +37/349
01/20 02:30   10 57.72  -17 30.0   3.833   4.445  122.9   10.7    6.5/274.1   0.3/310   68 24  19.7  +37/350
01/21 02:30   10 57.26  -17 29.5   3.825   4.450  123.9   10.6    6.8/275.3   0.3/310   80 25  19.7  +37/352
01/22 02:30   10 56.79  -17 28.9   3.818   4.455  124.9   10.4    7.0/276.4   0.3/311   92 26  19.7  +37/353
01/23 02:20   10 56.31  -17 28.1   3.810   4.460  125.9   10.3    7.2/277.5   0.3/312  103 27  19.7  +37/351
01/24 02:20   10 55.82  -17 27.2   3.803   4.464  126.9   10.2    7.4/278.5   0.3/312  115 28  19.6  +37/353
01/25 02:20   10 55.31  -17 26.1   3.796   4.469  127.9   10.0    7.6/279.5   0.3/313  125 29  19.6  +37/354
01/26 02:20   10 54.78  -17 24.8   3.789   4.474  128.9    9.9    7.8/280.4   0.3/314  135  1  19.6  +37/355
01/27 02:10   10 54.25  -17 23.4   3.783   4.478  129.9    9.7    8.0/281.3   0.2/315  144  2  19.6  +37/354
01/28 02:10   10 53.70  -17 21.9   3.776   4.483  130.9    9.6    8.2/282.1   0.2/315  150  3  19.6  +37/355
01/29 02:10   10 53.14  -17 20.1   3.770   4.488  131.9    9.4    8.4/283.0   0.2/316  153  4  19.6  +38/356
01/30 02:10   10 52.57  -17 18.2   3.764   4.492  132.9    9.2    8.6/283.8   0.2/317  150  4  19.6  +38/358
01/31 02:00   10 51.99  -17 16.2   3.758   4.497  133.8    9.1    8.8/284.5   0.2/318  144  5  19.6  +38/356
02/01 02:00   10 51.40  -17 14.0   3.753   4.502  134.8    8.9    9.0/285.3   0.2/319  136  6  19.6  +38/357
02/02 02:00   10 50.80  -17 11.6   3.747   4.506  135.8    8.8    9.2/286.0   0.2/320  127  7  19.6  +38/359
02/03 01:50   10 50.19  -17 09.1   3.742   4.511  136.8    8.6    9.3/286.7   0.2/321  116  8  19.6  +38/357
02/04 01:50   10 49.56  -17 06.4   3.737   4.516  137.7    8.4    9.5/287.4   0.2/322  105  9  19.6  +38/358
02/05 01:50   10 48.93  -17 03.6   3.733   4.520  138.7    8.3    9.7/288.1   0.2/323   94 10  19.6  +38/360
02/06 01:50   10 48.29  -17 00.6   3.728   4.525  139.6    8.1    9.8/288.7   0.2/324   82 11  19.6  +38/  1
02/07 01:40   10 47.64  -16 57.4   3.724   4.529  140.6    7.9   10.0/289.4   0.2/325   70 12  19.6  +38/360
02/08 01:40   10 46.99  -16 54.1   3.720   4.534  141.5    7.8   10.2/290.0   0.2/326   58 13  19.6  +38/  1
02/09 01:40   10 46.32  -16 50.6   3.717   4.538  142.4    7.6   10.3/290.6   0.2/327   46 14  19.6  +38/  2
02/10 01:40   10 45.65  -16 47.0   3.713   4.543  143.3    7.4   10.5/291.2   0.2/328   35 15  19.6  +38/  4
02/11 01:30   10 44.97  -16 43.2   3.710   4.548  144.2    7.3   10.6/291.8   0.2/330   29 16  19.6  +38/  2
02/12 01:30   10 44.29  -16 39.3   3.707   4.552  145.1    7.1   10.8/292.4   0.2/331   28 17  19.6  +38/  4
inserted by FC2 system