31P/Schwassmann-Wachmann 
   From 850 observations 1993 Oct. 11-2017 Nov. 16.(14) Kinoshita
   Epoch = 2018 Aug. 10.0 TT = JDT 2458340.5 
       T = 2019 July 6.17008 TT             peri.=  18.36236 
       e = 0.1932882                        node = 114.11358 (2000.0) 
       q = 3.4252542 AU                     incl.=   4.54654 
   a = 4.2459452 AU          n = 0.11265293         P = 8.75 years 
  m1 = 5.0 + 5log(delta) + 20.0log(r) 
  A. Node = E:01/15.2 JST  O:2019/03/19.8 JST  3.454 AU 
  D. Node = E:07/17.3 JST  O:2023/03/30.7 JST  5.006 AU 

2018   JST     R.A. (2000) D.C.    Delta     r    Elong. Phase   dMo./P.A.   Tail/P.A. M-O Ag   m1     H/A
07/31 03:40   05 50.07  +21 09.1   4.403   3.680   39.7   10.1   17.5/ 88.4   0.2/266  108 17  19.5  +17/256
08/01 03:40   05 51.32  +21 09.6   4.393   3.678   40.3   10.3   17.5/ 88.5   0.2/266   96 18  19.5  +17/256
08/02 03:40   05 52.57  +21 10.0   4.382   3.677   41.0   10.4   17.4/ 88.6   0.2/267   84 19  19.5  +18/256
08/03 03:40   05 53.81  +21 10.4   4.371   3.676   41.7   10.6   17.4/ 88.8   0.2/267   72 20  19.5  +18/257
08/04 03:40   05 55.06  +21 10.8   4.360   3.674   42.3   10.7   17.3/ 88.9   0.2/267   59 21  19.5  +19/257
08/05 03:40   05 56.29  +21 11.1   4.349   3.673   43.0   10.9   17.2/ 89.0   0.2/267   47 22  19.5  +19/257
08/06 03:40   05 57.52  +21 11.4   4.338   3.672   43.7   11.0   17.2/ 89.2   0.2/267   33 23  19.5  +20/258
08/07 03:40   05 58.75  +21 11.6   4.327   3.670   44.3   11.1   17.1/ 89.3   0.3/268   20 24  19.5  +21/258
08/08 03:40   05 59.98  +21 11.8   4.315   3.669   45.0   11.3   17.0/ 89.4   0.3/268    6 25  19.5  +21/258
08/09 03:40   06 01.19  +21 12.0   4.304   3.668   45.7   11.4   17.0/ 89.5   0.3/268    9 26  19.5  +22/259
08/10 03:40   06 02.41  +21 12.1   4.292   3.666   46.4   11.5   16.9/ 89.7   0.3/268   23 28  19.4  +22/259
08/11 03:30   06 03.61  +21 12.2   4.280   3.665   47.0   11.7   16.8/ 89.8   0.3/268   38 29  19.4  +21/258
08/12 03:30   06 04.81  +21 12.2   4.268   3.664   47.7   11.8   16.8/ 89.9   0.3/268   53  0  19.4  +21/258
08/13 03:30   06 06.01  +21 12.2   4.256   3.662   48.4   11.9   16.7/ 90.0   0.3/269   68  2  19.4  +22/259
08/14 03:30   06 07.20  +21 12.2   4.244   3.661   49.1   12.1   16.6/ 90.2   0.3/269   82  3  19.4  +22/259
08/15 03:30   06 08.39  +21 12.2   4.232   3.660   49.7   12.2   16.5/ 90.3   0.3/269   96  4  19.4  +23/259
08/16 03:30   06 09.57  +21 12.1   4.219   3.658   50.4   12.3   16.4/ 90.4   0.3/269  110  5  19.4  +24/260
08/17 03:30   06 10.75  +21 11.9   4.207   3.657   51.1   12.4   16.4/ 90.5   0.3/269  123  6  19.4  +24/260
08/18 03:30   06 11.92  +21 11.8   4.194   3.656   51.8   12.6   16.3/ 90.6   0.3/269  136  7  19.4  +25/261
08/19 03:30   06 13.08  +21 11.6   4.181   3.654   52.5   12.7   16.2/ 90.8   0.3/270  148  8  19.4  +25/261
08/20 03:30   06 14.24  +21 11.4   4.169   3.653   53.2   12.8   16.1/ 90.9   0.3/270  160  9  19.4  +26/261
08/21 03:20   06 15.38  +21 11.1   4.156   3.652   53.9   12.9   16.0/ 91.0   0.3/270  172 10  19.3  +24/260
08/22 03:20   06 16.52  +21 10.8   4.143   3.651   54.6   13.0   15.9/ 91.1   0.3/270  177 11  19.3  +25/261
08/23 03:20   06 17.66  +21 10.5   4.130   3.649   55.3   13.2   15.8/ 91.2   0.3/270  165 11  19.3  +25/261
08/24 03:20   06 18.79  +21 10.1   4.116   3.648   56.0   13.3   15.7/ 91.3   0.3/270  154 12  19.3  +26/261
08/25 03:20   06 19.92  +21 09.8   4.103   3.647   56.7   13.4   15.6/ 91.4   0.3/271  142 13  19.3  +27/262
08/26 03:20   06 21.03  +21 09.4   4.090   3.645   57.4   13.5   15.5/ 91.6   0.3/271  130 14  19.3  +27/262
08/27 03:20   06 22.14  +21 08.9   4.076   3.644   58.1   13.6   15.4/ 91.7   0.3/271  119 15  19.3  +28/263
08/28 03:20   06 23.25  +21 08.5   4.063   3.643   58.8   13.7   15.3/ 91.8   0.3/271  107 16  19.3  +28/263
08/29 03:20   06 24.34  +21 08.0   4.049   3.642   59.5   13.8   15.2/ 91.9   0.3/271   95 17  19.3  +29/263
08/30 03:20   06 25.43  +21 07.5   4.035   3.640   60.2   13.9   15.1/ 92.0   0.3/271   82 18  19.3  +29/264
08/31 03:10   06 26.51  +21 06.9   4.021   3.639   60.9   14.0   15.0/ 92.1   0.3/271   70 19  19.2  +28/263
inserted by FC2 system