Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2019 12 17.  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, -11.23) 12/19/2019   22:21:44  ( -79.74, -11.25)    2.20                72
 12/19/2019   23:13:41   (  79.76, 156.10) 12/19/2019   23:12:48  (  79.75, 156.06)    1.39                53
 12/20/2019   00:04:25   ( -79.76, -36.57) 12/20/2019   00:03:44  ( -79.76, -36.54)    0.71                41
 12/20/2019   00:55:10   (  79.76, 130.76) 12/20/2019   00:54:48  (  79.77, 130.77)    1.30                22
 12/20/2019   01:45:54   ( -79.75, -61.91) 12/20/2019   01:45:44  ( -79.78, -61.83)    3.15                10
 12/20/2019   02:36:40   (  79.78, 105.13) 12/20/2019   02:36:49  (  79.76, 105.19)    2.86                 9
 12/20/2019   03:27:24   ( -79.78, -87.54) 12/20/2019   03:27:45  ( -79.77, -87.42)    2.62                21
 12/20/2019   04:18:09   (  79.78,  79.79) 12/20/2019   04:18:49  (  79.78,  79.90)    2.13                40
 12/20/2019   05:08:53   ( -79.78,-112.87) 12/20/2019   05:09:46  ( -79.76,-113.01)    3.11                53
 12/20/2019   05:59:38   (  79.78,  54.46) 12/20/2019   06:00:50  (  79.77,  54.32)    2.82                72