Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2020 8 16.  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   ( -79.21, -16.58) 08/21/2020   23:02:31  ( -79.22, -16.56)    1.36                70
 08/21/2020   23:54:26   (  79.21, 150.72) 08/21/2020   23:53:33  (  79.22, 150.65)    1.50                53
 08/22/2020   00:45:10   ( -79.21, -41.94) 08/22/2020   00:44:31  ( -79.24, -41.91)    3.28                39
 08/22/2020   01:35:55   (  79.21, 125.36) 08/22/2020   01:35:33  (  79.24, 125.30)    2.91                22
 08/22/2020   02:26:40   ( -79.24, -67.56) 08/22/2020   02:26:32  ( -79.22, -67.54)    2.05                 8
 08/22/2020   03:17:25   (  79.24,  99.74) 08/22/2020   03:17:34  (  79.22,  99.67)    2.98                 9
 08/22/2020   04:08:09   ( -79.24, -92.91) 08/22/2020   04:08:32  ( -79.24, -92.90)    0.30                23
 08/22/2020   04:58:54   (  79.24,  74.39) 08/22/2020   04:59:34  (  79.24,  74.32)    1.45                40
 08/22/2020   05:49:38   ( -79.24,-118.27) 08/22/2020   05:50:32  ( -79.26,-118.26)    1.93                54
 08/22/2020   06:40:23   (  79.24,  49.03) 08/22/2020   06:41:34  (  79.25,  48.97)    1.89                71