Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2020 4 11.  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   20:11:35   ( -79.51,  23.83) 04/20/2020   20:10:23  ( -79.49,  23.92)    3.32                72
 04/20/2020   21:02:20   (  79.51,-168.89) 04/20/2020   21:01:26  (  79.49,-168.81)    3.20                54
 04/20/2020   21:53:04   ( -79.51,  -1.52) 04/20/2020   21:52:23  ( -79.50,  -1.40)    2.53                41
 04/20/2020   22:43:49   (  79.51, 165.77) 04/20/2020   22:43:26  (  79.51, 165.87)    2.22                23
 04/20/2020   23:34:33   ( -79.51, -26.87) 04/20/2020   23:34:24  ( -79.49, -27.00)    2.96                 9
 04/21/2020   00:25:18   (  79.51, 140.42) 04/21/2020   00:25:27  (  79.50, 140.27)    3.21                 9
 04/21/2020   01:16:02   ( -79.50, -52.22) 04/21/2020   01:16:24  ( -79.51, -52.32)    2.32                22
 04/21/2020   02:06:47   (  79.51, 115.07) 04/21/2020   02:07:27  (  79.52, 114.96)    2.50                40
 04/21/2020   02:57:31   ( -79.50, -77.57) 04/21/2020   02:58:24  ( -79.53, -77.64)    3.62                53
 04/21/2020   03:48:16   (  79.50,  89.72) 04/21/2020   03:49:27  (  79.53,  89.64)    3.73                71