Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2020 8 9.  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   ( -79.20, -16.51) 08/21/2020   23:02:31  ( -79.23, -16.54)    2.75                70
 08/21/2020   23:54:26   (  79.21, 150.75) 08/21/2020   23:53:33  (  79.22, 150.64)    2.52                53
 08/22/2020   00:45:11   ( -79.23, -42.13) 08/22/2020   00:44:32  ( -79.21, -42.16)    2.70                39
 08/22/2020   01:35:56   (  79.24, 125.13) 08/22/2020   01:35:33  (  79.24, 125.29)    3.27                23
 08/22/2020   02:26:40   ( -79.23, -67.48) 08/22/2020   02:26:32  ( -79.23, -67.52)    0.99                 8
 08/22/2020   03:17:25   (  79.24,  99.78) 08/22/2020   03:17:34  (  79.22,  99.66)    3.19                 9
 08/22/2020   04:08:09   ( -79.23, -92.84) 08/22/2020   04:08:32  ( -79.24, -92.88)    1.58                23
 08/22/2020   04:58:54   (  79.24,  74.42) 08/22/2020   04:59:34  (  79.24,  74.31)    2.27                40
 08/22/2020   05:49:38   ( -79.23,-118.20) 08/22/2020   05:50:32  ( -79.26,-118.24)    3.43                54
 08/22/2020   06:40:22   (  79.24,  49.06) 08/22/2020   06:41:33  (  79.25,  48.96)    2.89                71