261P/Larson 
   From 563 observations 2005 July 3-2019 Aug. 13.(3) Kinoshita
   Epoch = 2019 Oct. 24.0 TT = JDT 2458780.5 
       T = 2019 June 18.68882 TT            peri.=  67.11765 
       e = 0.4228391                        node = 291.16540 (2000.0) 
       q = 2.0134249 AU                     incl.=   6.07608 
   a = 3.4884984 AU          n = 0.15126773         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  2.460 AU 
  D. Node = E:01/12.6 JST  O:2020/08/11.6 JST  3.428 AU 

2019   JST     R.A. (2000) D.C.    Delta     r    Elong. Phase   dMo./P.A.   Tail/P.A. M-O Ag   m1     H/A
09/24 01:00   03 45.92  +28 38.7   1.476   2.150  119.1   24.1    6.2/ 57.2   1.5/252   50 24  16.5  +56/270
09/25 01:00   03 46.31  +28 42.0   1.469   2.153  119.9   23.8    5.7/ 55.9   1.5/252   63 25  16.5  +57/270
09/26 01:00   03 46.67  +28 45.2   1.462   2.155  120.8   23.6    5.3/ 54.3   1.5/252   77 26  16.5  +58/271
09/27 01:00   03 47.00  +28 48.3   1.456   2.158  121.7   23.3    4.8/ 52.4   1.5/252   92 27  16.5  +59/271
09/28 01:00   03 47.29  +28 51.2   1.449   2.161  122.6   23.0    4.3/ 50.1   1.5/252  107 28  16.5  +60/272
09/29 00:50   03 47.54  +28 54.0   1.443   2.164  123.5   22.7    3.9/ 47.3   1.4/251  121  0  16.5  +58/271
09/30 00:50   03 47.75  +28 56.6   1.437   2.166  124.4   22.4    3.4/ 43.7   1.4/251  136  1  16.5  +59/271
10/01 00:50   03 47.94  +28 59.1   1.431   2.169  125.3   22.1    3.0/ 39.2   1.4/251  149  2  16.5  +60/272
10/02 00:50   03 48.08  +29 01.4   1.425   2.172  126.2   21.8    2.6/ 33.2   1.4/251  162  3  16.5  +61/272
10/03 00:50   03 48.19  +29 03.6   1.419   2.175  127.1   21.5    2.2/ 25.1   1.4/251  168  4  16.5  +61/273
10/04 00:50   03 48.26  +29 05.6   1.413   2.178  128.1   21.2    1.9/ 14.2   1.4/250  162  5  16.5  +62/273
10/05 00:50   03 48.30  +29 07.5   1.407   2.180  129.0   20.9    1.7/360.0   1.4/250  151  6  16.5  +63/274
10/06 00:40   03 48.30  +29 09.2   1.402   2.183  130.0   20.6    1.6/343.2   1.3/250  139  7  16.5  +62/273
10/07 00:40   03 48.26  +29 10.7   1.397   2.186  130.9   20.2    1.7/325.9   1.3/249  127  8  16.5  +63/273
10/08 00:40   03 48.19  +29 12.1   1.391   2.189  131.9   19.9    1.9/311.0   1.3/249  115  9  16.5  +63/274
10/09 00:40   03 48.08  +29 13.3   1.386   2.192  132.9   19.5    2.1/299.4   1.3/249  104 10  16.5  +64/275
10/10 00:40   03 47.94  +29 14.4   1.381   2.195  133.9   19.2    2.5/290.8   1.3/249   92 11  16.5  +65/275
10/11 00:40   03 47.76  +29 15.3   1.377   2.198  134.9   18.8    2.9/284.4   1.3/248   80 12  16.5  +66/276
10/12 00:30   03 47.55  +29 16.0   1.372   2.201  135.9   18.4    3.3/279.5   1.2/248   69 13  16.5  +65/275
10/13 00:30   03 47.31  +29 16.5   1.367   2.204  136.9   18.0    3.7/275.7   1.2/247   57 14  16.5  +66/276
10/14 00:30   03 47.02  +29 16.9   1.363   2.207  137.9   17.6    4.1/272.6   1.2/247   46 14  16.5  +66/276
10/15 00:30   03 46.71  +29 17.1   1.359   2.210  138.9   17.3    4.6/270.1   1.2/247   34 16  16.6  +67/277
10/16 00:30   03 46.36  +29 17.1   1.355   2.213  139.9   16.9    5.0/268.0   1.1/246   23 16  16.6  +68/278
10/17 00:30   03 45.98  +29 16.9   1.351   2.216  141.0   16.5    5.4/266.2   1.1/246   14 17  16.6  +69/279
10/18 00:20   03 45.57  +29 16.5   1.348   2.219  142.0   16.0    5.8/264.7   1.1/245   14 18  16.6  +68/278
10/19 00:20   03 45.12  +29 16.0   1.344   2.223  143.1   15.6    6.3/263.3   1.1/245   22 19  16.6  +69/279
10/20 00:20   03 44.65  +29 15.3   1.341   2.226  144.1   15.2    6.7/262.1   1.0/244   33 20  16.6  +70/280
10/21 00:20   03 44.14  +29 14.3   1.338   2.229  145.2   14.8    7.1/261.0   1.0/243   46 21  16.6  +71/281
10/22 00:20   03 43.61  +29 13.2   1.335   2.232  146.2   14.4    7.5/260.1   1.0/243   59 22  16.6  +71/282
10/23 00:10   03 43.04  +29 11.9   1.332   2.235  147.3   13.9    7.9/259.1   1.0/242   73 23  16.6  +70/281
10/24 00:10   03 42.45  +29 10.4   1.330   2.238  148.4   13.5    8.3/258.3   0.9/242   87 24  16.6  +71/282
inserted by FC2 system