Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2020 8 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)
 08/21/2020   23:03:41   ( -79.21, -16.55) 08/21/2020   23:02:31  ( -79.23, -16.52)    2.21                70
 08/21/2020   23:54:26   (  79.21, 150.76) 08/21/2020   23:53:33  (  79.23, 150.71)    2.26                53
 08/22/2020   00:45:11   ( -79.24, -42.17) 08/22/2020   00:44:32  ( -79.21, -42.15)    3.15                39
 08/22/2020   01:35:56   (  79.24, 125.15) 08/22/2020   01:35:34  (  79.21, 125.09)    3.51                22
 08/22/2020   02:26:40   ( -79.24, -67.52) 08/22/2020   02:26:32  ( -79.23, -67.51)    1.19                 8
 08/22/2020   03:17:24   (  79.24,  99.79) 08/22/2020   03:17:33  (  79.23,  99.73)    1.69                 9
 08/22/2020   04:08:08   ( -79.24, -92.88) 08/22/2020   04:08:31  ( -79.24, -92.86)    0.92                23
 08/22/2020   04:58:53   (  79.24,  74.43) 08/22/2020   04:59:33  (  79.24,  74.38)    1.34                40
 08/22/2020   05:49:37   ( -79.24,-118.24) 08/22/2020   05:50:31  ( -79.26,-118.22)    2.85                54
 08/22/2020   06:40:22   (  79.24,  49.07) 08/22/2020   06:41:33  (  79.26,  49.03)    3.00                71