Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2019 12 7.  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   ( -79.73, -10.98) 12/19/2019   22:21:44  ( -79.76, -11.03)    3.15                72
 12/19/2019   23:13:41   (  79.74, 156.31) 12/19/2019   23:12:48  (  79.76, 156.23)    3.35                53
 12/20/2019   00:04:26   ( -79.76, -36.60) 12/20/2019   00:03:45  ( -79.75, -36.62)    1.04                41
 12/20/2019   00:55:11   (  79.76, 130.69) 12/20/2019   00:54:49  (  79.76, 130.64)    1.29                22
 12/20/2019   01:45:55   ( -79.76, -61.94) 12/20/2019   01:45:45  ( -79.77, -61.91)    1.56                10
 12/20/2019   02:36:40   (  79.76, 105.35) 12/20/2019   02:36:49  (  79.77, 105.36)    1.49                 9
 12/20/2019   03:27:24   ( -79.79, -87.57) 12/20/2019   03:27:45  ( -79.76, -87.50)    2.78                21
 12/20/2019   04:18:09   (  79.79,  79.72) 12/20/2019   04:18:49  (  79.77,  79.77)    2.59                40
 12/20/2019   05:08:53   ( -79.78,-112.90) 12/20/2019   05:09:45  ( -79.78,-112.79)    2.21                52
 12/20/2019   05:59:38   (  79.79,  54.38) 12/20/2019   06:00:49  (  79.79,  54.48)    1.93                71