117P/Helin-Roman-Alu 
   From 4119 observations 1988 Aug. 12-2018 Mar. 10. Kinoshita
   Epoch = 2018 Dec. 28.0 TT = JDT 2458480.5 
       T = 2022 July 6.42059 TT             peri.= 222.53286 
       e = 0.2552919                        node =  58.87490 (2000.0) 
       q = 3.0461207 AU                     incl.=   8.70151 
   a = 4.0903553 AU          n = 0.11914135         P = 8.27 years 
  m1 = 5.0 + 5log(delta) + 15.0log(r) 
  A. Node = E:11/21.9 JST  O:2025/02/22.7 JST  4.710 AU 
  D. Node = E:05/20.8 JST  O:2021/12/06.2 JST  3.218 AU 

18/19  JST     R.A. (2000) D.C.    Delta     r    Elong. Phase   dMo./P.A.   Tail/P.A. M-O Ag   m1     H/A
12/08 01:30   08 37.27  +27 19.6   4.385   5.075  130.0    8.5    4.3/310.1   0.2/278  134  0  18.8  +63/278
12/09 01:30   08 37.02  +27 22.4   4.372   5.074  131.1    8.4    4.5/308.8   0.2/277  146  1  18.8  +64/279
12/10 01:30   08 36.76  +27 25.2   4.360   5.074  132.1    8.3    4.7/307.6   0.2/277  158  2  18.8  +65/280
12/11 01:30   08 36.48  +27 28.0   4.348   5.073  133.2    8.1    4.8/306.5   0.2/277  168  3  18.8  +66/281
12/12 01:30   08 36.19  +27 30.9   4.336   5.073  134.3    8.0    5.0/305.5   0.2/276  171  4  18.8  +67/282
12/13 01:20   08 35.88  +27 33.8   4.324   5.072  135.3    7.8    5.2/304.5   0.2/276  163  5  18.8  +66/280
12/14 01:20   08 35.56  +27 36.7   4.313   5.072  136.4    7.7    5.4/303.6   0.2/275  152  6  18.8  +66/281
12/15 01:20   08 35.23  +27 39.7   4.302   5.071  137.5    7.5    5.5/302.8   0.2/275  140  7  18.7  +67/282
12/16 01:20   08 34.88  +27 42.7   4.291   5.070  138.5    7.4    5.7/302.0   0.2/275  129  8  18.7  +68/283
12/17 01:20   08 34.51  +27 45.7   4.280   5.070  139.6    7.2    5.9/301.2   0.2/274  116  8  18.7  +69/284
12/18 01:10   08 34.14  +27 48.7   4.269   5.069  140.7    7.1    6.0/300.5   0.2/274  104  9  18.7  +68/282
12/19 01:10   08 33.75  +27 51.8   4.259   5.068  141.8    6.9    6.2/299.8   0.2/273   91 10  18.7  +69/283
12/20 01:10   08 33.34  +27 54.9   4.249   5.068  142.8    6.7    6.4/299.1   0.2/273   78 11  18.7  +70/284
12/21 01:10   08 32.92  +27 58.0   4.239   5.067  143.9    6.6    6.5/298.5   0.2/272   64 12  18.7  +71/285
12/22 01:10   08 32.49  +28 01.1   4.229   5.067  145.0    6.4    6.7/297.9   0.1/271   50 13  18.7  +71/287
12/23 01:00   08 32.05  +28 04.2   4.220   5.066  146.1    6.2    6.8/297.3   0.1/271   35 14  18.7  +70/285
12/24 01:00   08 31.59  +28 07.3   4.211   5.065  147.1    6.0    7.0/296.8   0.1/270   21 16  18.7  +71/286
12/25 01:00   08 31.12  +28 10.4   4.202   5.065  148.2    5.9    7.1/296.3   0.1/270   10 17  18.7  +72/287
12/26 01:00   08 30.64  +28 13.6   4.194   5.064  149.3    5.7    7.3/295.7   0.1/269   13 18  18.7  +73/289
12/27 01:00   08 30.14  +28 16.7   4.185   5.063  150.4    5.5    7.4/295.2   0.1/268   27 19  18.7  +74/290
12/28 00:50   08 29.64  +28 19.8   4.177   5.063  151.4    5.3    7.5/294.7   0.1/267   41 20  18.7  +73/288
12/29 00:50   08 29.12  +28 23.0   4.169   5.062  152.5    5.1    7.7/294.3   0.1/266   55 21  18.7  +74/289
12/30 00:50   08 28.59  +28 26.1   4.162   5.062  153.6    5.0    7.8/293.8   0.1/265   68 22  18.7  +75/291
12/31 00:50   08 28.05  +28 29.3   4.155   5.061  154.6    4.8    7.9/293.4   0.1/264   82 23  18.7  +76/293
01/01 00:50   08 27.50  +28 32.4   4.148   5.060  155.7    4.6    8.0/292.9   0.1/263   95 24  18.7  +76/295
01/02 00:40   08 26.94  +28 35.5   4.141   5.060  156.7    4.4    8.1/292.5   0.1/262  108 25  18.6  +75/292
01/03 00:40   08 26.37  +28 38.6   4.135   5.059  157.8    4.2    8.2/292.1   0.1/261  120 26  18.6  +76/294
01/04 00:40   08 25.79  +28 41.7   4.129   5.058  158.8    4.0    8.3/291.7   0.1/259  133 27  18.6  +77/296
01/05 00:40   08 25.20  +28 44.8   4.123   5.058  159.8    3.8    8.4/291.3   0.1/258  145 28  18.6  +78/298
01/06 00:30   08 24.61  +28 47.8   4.118   5.057  160.9    3.7    8.5/290.9   0.1/256  156 29  18.6  +77/295
01/07 00:30   08 24.00  +28 50.8   4.113   5.056  161.8    3.5    8.6/290.5   0.1/254  167  1  18.6  +78/297
01/08 00:30   08 23.39  +28 53.9   4.108   5.056  162.8    3.3    8.7/290.1   0.1/252  171  1  18.6  +79/300
inserted by FC2 system