Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2020 4 14.  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   20:10:22  ( -79.49,  24.00)    2.31                72
 04/20/2020   21:02:19   (  79.50,-168.80) 04/20/2020   21:01:25  (  79.50,-168.72)    1.82                54
 04/20/2020   21:53:03   ( -79.50,  -1.45) 04/20/2020   21:52:22  ( -79.51,  -1.32)    3.07                41
 04/20/2020   22:43:48   (  79.50, 165.85) 04/20/2020   22:43:25  (  79.52, 165.96)    2.88                23
 04/20/2020   23:34:32   ( -79.50, -26.80) 04/20/2020   23:34:23  ( -79.50, -26.92)    2.51                 9
 04/21/2020   00:25:17   (  79.50, 140.50) 04/21/2020   00:25:26  (  79.51, 140.36)    2.87                 9
 04/21/2020   01:16:01   ( -79.49, -52.15) 04/21/2020   01:16:23  ( -79.52, -52.24)    3.38                22
 04/21/2020   02:06:47   (  79.53, 114.88) 04/21/2020   02:07:26  (  79.52, 115.05)    3.48                39
 04/21/2020   02:57:31   ( -79.52, -77.77) 04/21/2020   02:58:24  ( -79.51, -77.85)    2.26                53
 04/21/2020   03:48:16   (  79.53,  89.53) 04/21/2020   03:49:27  (  79.51,  89.45)    2.09                71