261P/Larson 
   From 563 observations 2005 July 3-2019 Aug. 13.(3) Kinoshita
   Epoch = 2020 Feb. 1.0 TT = JDT 2458880.5 
       T = 2019 June 18.71395 TT            peri.=  67.12634 
       e = 0.4229147                        node = 291.16515 (2000.0) 
       q = 2.0134698 AU                     incl.=   6.07610 
   a = 3.4890336 AU          n = 0.15123292         P = 6.52 years 
  m1 = 9.0 + 5log(delta) + 20.0log(r) 
  A. Node = E:07/14.5 JST  O:2018/12/13.1 JST  2.461 AU 
  D. Node = E:01/12.6 JST  O:2020/08/11.6 JST  3.429 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 21:50   03 08.90  +23 06.5   1.907   2.540  119.5   19.7    7.4/103.9   1.0/ 77   83 17  18.5  +60/ 76
01/13 21:50   03 09.42  +23 04.7   1.922   2.544  118.6   19.8    7.7/102.4   1.0/ 77   98 18  18.5  +59/ 76
01/14 21:50   03 09.96  +23 03.0   1.938   2.548  117.7   20.0    8.0/101.1   1.0/ 77  112 19  18.6  +58/ 77
01/15 21:50   03 10.53  +23 01.5   1.953   2.553  116.8   20.1    8.2/ 99.9   1.0/ 77  126 20  18.6  +58/ 78
01/16 21:50   03 11.12  +23 00.1   1.969   2.557  115.9   20.2    8.5/ 98.8   1.0/ 77  140 21  18.6  +57/ 78
01/17 21:50   03 11.73  +22 58.8   1.984   2.561  115.1   20.4    8.8/ 97.7   1.0/ 77  153 22  18.7  +56/ 79
01/18 21:50   03 12.36  +22 57.6   2.000   2.565  114.2   20.5    9.1/ 96.8   1.0/ 77  165 23  18.7  +56/ 80
01/19 21:40   03 13.01  +22 56.5   2.016   2.569  113.3   20.6    9.4/ 95.9   1.0/ 77  171 24  18.7  +57/ 78
01/20 21:40   03 13.68  +22 55.6   2.031   2.573  112.4   20.7    9.6/ 95.1   1.0/ 77  163 25  18.7  +56/ 79
01/21 21:40   03 14.38  +22 54.7   2.047   2.577  111.6   20.8    9.9/ 94.3   1.0/ 77  151 26  18.8  +56/ 80
01/22 21:40   03 15.09  +22 53.9   2.063   2.582  110.7   20.9   10.2/ 93.6   0.9/ 77  138 27  18.8  +55/ 80
01/23 21:40   03 15.83  +22 53.3   2.080   2.586  109.9   21.0   10.5/ 93.0   0.9/ 76  126 28  18.8  +54/ 81
01/24 21:40   03 16.58  +22 52.7   2.096   2.590  109.0   21.1   10.7/ 92.4   0.9/ 76  113 29  18.9  +54/ 81
01/25 21:40   03 17.36  +22 52.3   2.112   2.594  108.2   21.1   11.0/ 91.8   0.9/ 76  101  1  18.9  +53/ 82
01/26 21:40   03 18.16  +22 51.9   2.129   2.598  107.4   21.2   11.3/ 91.3   0.9/ 76   89  2  18.9  +52/ 82
01/27 21:40   03 18.97  +22 51.7   2.145   2.602  106.5   21.3   11.5/ 90.8   0.9/ 76   77  2  19.0  +52/ 83
01/28 21:30   03 19.80  +22 51.5   2.161   2.606  105.7   21.3   11.8/ 90.3   0.9/ 76   66  3  19.0  +53/ 82
01/29 21:40   03 20.65  +22 51.4   2.178   2.611  104.9   21.4   12.0/ 89.9   0.9/ 76   54  4  19.0  +50/ 84
01/30 21:40   03 21.52  +22 51.5   2.195   2.615  104.1   21.4   12.3/ 89.5   0.9/ 76   43  5  19.1  +50/ 85
01/31 21:30   03 22.40  +22 51.5   2.211   2.619  103.2   21.5   12.5/ 89.1   0.9/ 76   31  6  19.1  +51/ 83
02/01 21:30   03 23.31  +22 51.7   2.228   2.623  102.4   21.5   12.7/ 88.8   0.9/ 76   20  7  19.1  +51/ 84
02/02 21:30   03 24.23  +22 52.0   2.245   2.627  101.6   21.6   13.0/ 88.5   0.9/ 76   10  8  19.1  +50/ 84
02/03 21:30   03 25.16  +22 52.3   2.262   2.632  100.8   21.6   13.2/ 88.2   0.9/ 76    9  9  19.2  +49/ 85
02/04 21:30   03 26.12  +22 52.7   2.279   2.636  100.0   21.6   13.4/ 87.9   0.9/ 76   19 10  19.2  +49/ 85
02/05 21:30   03 27.09  +22 53.2   2.296   2.640   99.2   21.6   13.6/ 87.6   0.9/ 76   32 11  19.2  +48/ 86
02/06 21:30   03 28.07  +22 53.8   2.313   2.644   98.4   21.6   13.8/ 87.4   0.9/ 76   45 12  19.3  +48/ 86
02/07 21:30   03 29.07  +22 54.4   2.330   2.648   97.7   21.7   14.0/ 87.1   0.9/ 76   58 13  19.3  +47/ 87
02/08 21:30   03 30.09  +22 55.1   2.347   2.653   96.9   21.7   14.2/ 86.9   0.9/ 76   72 14  19.3  +46/ 87
02/09 21:30   03 31.12  +22 55.9   2.364   2.657   96.1   21.7   14.4/ 86.7   0.9/ 76   87 15  19.4  +46/ 88
02/10 21:20   03 32.15  +22 56.7   2.381   2.661   95.3   21.7   14.6/ 86.5   0.9/ 76  101 16  19.4  +47/ 87
02/11 21:20   03 33.21  +22 57.5   2.398   2.665   94.6   21.7   14.8/ 86.4   0.8/ 77  116 17  19.4  +47/ 87
02/12 21:20   03 34.28  +22 58.5   2.416   2.670   93.8   21.6   15.0/ 86.2   0.8/ 77  130 18  19.4  +46/ 88
inserted by FC2 system