Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2020 4 8.  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)
 04/20/2020   20:11:34   ( -79.50,  23.90) 04/20/2020   20:10:23  ( -79.47,  23.81)    3.63                71
 04/20/2020   21:02:19   (  79.51,-168.83) 04/20/2020   21:01:25  (  79.50,-168.66)    3.43                54
 04/20/2020   21:53:03   ( -79.50,  -1.45) 04/20/2020   21:52:23  ( -79.49,  -1.51)    1.55                40
 04/20/2020   22:43:48   (  79.51, 165.82) 04/20/2020   22:43:26  (  79.49, 165.74)    2.07                22
 04/20/2020   23:34:32   ( -79.50, -26.79) 04/20/2020   23:34:23  ( -79.51, -26.83)    1.74                 9
 04/21/2020   00:25:17   (  79.50, 140.47) 04/21/2020   00:25:26  (  79.51, 140.42)    1.49                 9
 04/21/2020   01:16:02   ( -79.53, -52.42) 04/21/2020   01:16:24  ( -79.50, -52.44)    2.96                22
 04/21/2020   02:06:47   (  79.53, 114.85) 04/21/2020   02:07:27  (  79.50, 114.82)    3.38                40
 04/21/2020   02:57:31   ( -79.52, -77.77) 04/21/2020   02:58:24  ( -79.52, -77.75)    0.67                53
 04/21/2020   03:48:16   (  79.53,  89.50) 04/21/2020   03:49:27  (  79.52,  89.51)    1.01                71