Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2020 4 12.  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  ( -79.48,  23.87)    3.42                72
 04/20/2020   21:02:20   (  79.51,-168.88) 04/20/2020   21:01:26  (  79.48,-168.86)    3.32                54
 04/20/2020   21:53:04   ( -79.51,  -1.52) 04/20/2020   21:52:23  ( -79.50,  -1.45)    1.79                41
 04/20/2020   22:43:49   (  79.51, 165.77) 04/20/2020   22:43:26  (  79.50, 165.83)    1.46                23
 04/20/2020   23:34:33   ( -79.51, -26.87) 04/20/2020   23:34:23  ( -79.52, -26.77)    2.47                10
 04/21/2020   00:25:18   (  79.51, 140.42) 04/21/2020   00:25:26  (  79.52, 140.51)    2.29                 8
 04/21/2020   01:16:02   ( -79.50, -52.22) 04/21/2020   01:16:24  ( -79.51, -52.37)    3.14                22
 04/21/2020   02:06:47   (  79.51, 115.07) 04/21/2020   02:07:27  (  79.51, 114.91)    3.37                40
 04/21/2020   02:57:32   ( -79.53, -77.84) 04/21/2020   02:58:24  ( -79.52, -77.69)    3.11                52
 04/21/2020   03:48:17   (  79.54,  89.45) 04/21/2020   03:49:27  (  79.53,  89.59)    2.95                70