Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2020 5 23.  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   (  79.10,-146.18) 05/31/2020   19:43:18  (  79.13,-150.90)   99.16                62
 05/31/2020   20:35:13   ( -79.41,  18.76) 05/31/2020   20:34:07  ( -79.41,  18.92)    3.28                66
 05/31/2020   21:25:58   (  79.41,-173.88) 05/31/2020   21:25:09  (  79.42,-173.77)    2.43                49
 05/31/2020   22:16:42   ( -79.41,  -6.59) 05/31/2020   22:16:08  ( -79.40,  -6.69)    2.37                34
 05/31/2020   23:07:27   (  79.41, 160.76) 05/31/2020   23:07:10  (  79.41, 160.61)    3.10                17
 05/31/2020   23:58:10   ( -79.41, -31.94) 05/31/2020   23:58:07  ( -79.42, -32.01)    1.73                 3
 06/01/2020   00:48:56   (  79.44, 135.14) 06/01/2020   00:49:09  (  79.42, 135.28)    3.23                13
 06/01/2020   01:39:39   ( -79.41, -57.29) 06/01/2020   01:40:07  ( -79.44, -57.34)    3.29                28
 06/01/2020   02:30:25   (  79.44, 109.79) 06/01/2020   02:31:09  (  79.44, 109.95)    3.28                44
 06/01/2020   03:21:09   ( -79.44, -82.91) 06/01/2020   03:22:08  ( -79.42, -82.95)    1.72                59