Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2020 4 20.  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   21:02:19   (  79.49,-168.72) 04/20/2020   21:01:26  (  79.48,-168.86)    3.04                53
 04/20/2020   21:53:03   ( -79.49,  -1.41) 04/20/2020   21:52:23  ( -79.49,  -1.50)    1.75                40
 04/20/2020   22:43:48   (  79.49, 165.93) 04/20/2020   22:43:26  (  79.50, 165.82)    2.46                22
 04/20/2020   23:34:32   ( -79.49, -26.76) 04/20/2020   23:34:23  ( -79.51, -26.82)    2.61                 9
 04/21/2020   00:25:18   (  79.52, 140.30) 04/21/2020   00:25:27  (  79.49, 140.22)    3.71                 9
 04/21/2020   01:16:02   ( -79.52, -52.38) 04/21/2020   01:16:24  ( -79.50, -52.42)    2.32                22
 04/21/2020   02:06:47   (  79.52, 114.95) 04/21/2020   02:07:27  (  79.51, 114.90)    1.42                40
 04/21/2020   02:57:31   ( -79.52, -77.73) 04/21/2020   02:58:24  ( -79.52, -77.74)    0.23                53
 04/21/2020   03:48:16   (  79.52,  89.60) 04/21/2020   03:49:27  (  79.53,  89.59)    1.41                71
 05/04/2020   12:19:28   ( -79.48, 142.14) 05/04/2020   12:18:19  ( -79.45, 142.17)    3.02                69
 05/04/2020   13:10:12   (  79.48, -50.52) 05/04/2020   13:09:23  (  79.45, -50.61)    3.27                49
 05/04/2020   14:00:56   ( -79.48, 116.78) 05/04/2020   14:00:18  ( -79.47, 116.84)    1.39                38
 05/04/2020   14:51:41   (  79.47, -75.87) 05/04/2020   14:51:23  (  79.47, -75.94)    1.33                18
 05/04/2020   15:42:25   ( -79.47,  91.43) 05/04/2020   15:42:18  ( -79.49,  91.52)    2.37                 7
 05/04/2020   16:33:10   (  79.47,-101.23) 05/04/2020   16:33:23  (  79.49,-101.26)    1.97                13
 05/04/2020   17:23:54   ( -79.47,  66.08) 05/04/2020   17:24:19  ( -79.48,  65.91)    3.45                25
 05/04/2020   18:14:40   (  79.50,-126.85) 05/04/2020   18:15:24  (  79.48,-126.86)    2.75                44
 05/04/2020   19:05:24   ( -79.50,  40.46) 05/04/2020   19:06:19  ( -79.50,  40.59)    2.80                55