Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2020 5 21.  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)
 05/31/2020   19:44:20   (  79.12,-146.28) 05/31/2020   19:43:17  (  79.15,-150.72)   93.06                63
 05/31/2020   20:35:12   ( -79.39,  18.93) 05/31/2020   20:34:07  ( -79.40,  18.84)    2.16                65
 05/31/2020   21:25:58   (  79.42,-173.99) 05/31/2020   21:25:09  (  79.41,-173.86)    3.05                49
 05/31/2020   22:16:41   ( -79.39,  -6.42) 05/31/2020   22:16:07  ( -79.42,  -6.49)    3.62                34
 05/31/2020   23:07:27   (  79.42, 160.66) 05/31/2020   23:07:09  (  79.43, 160.80)    3.12                18
 05/31/2020   23:58:11   ( -79.42, -32.04) 05/31/2020   23:58:08  ( -79.41, -32.09)    1.75                 3
 06/01/2020   00:48:56   (  79.42, 135.30) 06/01/2020   00:49:10  (  79.41, 135.19)    2.30                14
 06/01/2020   01:39:40   ( -79.42, -57.39) 06/01/2020   01:40:08  ( -79.43, -57.42)    1.09                28
 06/01/2020   02:30:25   (  79.42, 109.95) 06/01/2020   02:31:10  (  79.43, 109.86)    2.54                45
 06/01/2020   03:21:09   ( -79.42, -82.74) 06/01/2020   03:22:08  ( -79.45, -82.75)    3.13                59