Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2019 12 13.  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)
 12/19/2019   22:22:56   ( -79.76, -11.19) 12/19/2019   22:21:44  ( -79.74, -11.26)    2.35                72
 12/19/2019   23:13:41   (  79.76, 156.12) 12/19/2019   23:12:48  (  79.75, 156.02)    2.30                53
 12/20/2019   00:04:25   ( -79.75, -36.53) 12/20/2019   00:03:44  ( -79.76, -36.56)    0.71                41
 12/20/2019   00:55:10   (  79.75, 130.78) 12/20/2019   00:54:48  (  79.76, 130.74)    1.37                22
 12/20/2019   01:45:54   ( -79.75, -61.87) 12/20/2019   01:45:44  ( -79.78, -61.85)    3.02                10
 12/20/2019   02:36:40   (  79.78, 105.15) 12/20/2019   02:36:49  (  79.76, 105.15)    2.81                 9
 12/20/2019   03:27:24   ( -79.78, -87.50) 12/20/2019   03:27:45  ( -79.77, -87.44)    1.50                21
 12/20/2019   04:18:09   (  79.78,  79.82) 12/20/2019   04:18:49  (  79.78,  79.86)    0.98                40
 12/20/2019   05:08:53   ( -79.77,-112.83) 12/20/2019   05:09:45  ( -79.79,-112.73)    2.58                52
 12/20/2019   05:59:38   (  79.77,  54.48) 12/20/2019   06:00:49  (  79.79,  54.57)    2.85                71