Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2020 8 18.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(NOAA-19) NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 08/21/2020   23:03:41   ( -79.23, -16.68) 08/21/2020   23:02:31  ( -79.21, -16.68)    1.86                70
 08/21/2020   23:54:26   (  79.23, 150.63) 08/21/2020   23:53:33  (  79.21, 150.54)    2.96                53
 08/22/2020   00:45:10   ( -79.22, -42.04) 08/22/2020   00:44:31  ( -79.22, -42.04)    0.16                39
 08/22/2020   01:35:55   (  79.22, 125.27) 08/22/2020   01:35:33  (  79.22, 125.18)    1.80                22
 08/22/2020   02:26:39   ( -79.22, -67.40) 08/22/2020   02:26:31  ( -79.24, -67.40)    2.13                 8
 08/22/2020   03:17:24   (  79.22,  99.91) 08/22/2020   03:17:33  (  79.24,  99.83)    2.47                 9
 08/22/2020   04:08:09   ( -79.25, -93.01) 08/22/2020   04:08:32  ( -79.23, -93.03)    3.14                23
 08/22/2020   04:58:54   (  79.26,  74.29) 08/22/2020   04:59:33  (  79.26,  74.48)    3.79                39
 08/22/2020   05:49:38   ( -79.25,-118.37) 08/22/2020   05:50:32  ( -79.24,-118.38)    1.18                54
 08/22/2020   06:40:23   (  79.25,  48.94) 08/22/2020   06:41:34  (  79.24,  48.85)    2.21                71