Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2019 12 8.  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   ( -79.75, -11.12) 12/19/2019   22:21:44  ( -79.75, -11.21)    1.82                72
 12/19/2019   23:13:41   (  79.75, 156.17) 12/19/2019   23:12:48  (  79.75, 156.06)    2.29                53
 12/20/2019   00:04:25   ( -79.75, -36.46) 12/20/2019   00:03:44  ( -79.76, -36.50)    2.07                41
 12/20/2019   00:55:10   (  79.75, 130.83) 12/20/2019   00:54:48  (  79.77, 130.77)    2.35                22
 12/20/2019   01:45:55   ( -79.77, -62.09) 12/20/2019   01:45:45  ( -79.76, -62.09)    2.02                10
 12/20/2019   02:36:40   (  79.78, 105.21) 12/20/2019   02:36:49  (  79.76, 105.18)    1.97                 9
 12/20/2019   03:27:24   ( -79.77, -87.42) 12/20/2019   03:27:45  ( -79.77, -87.38)    0.91                21
 12/20/2019   04:18:09   (  79.77,  79.87) 12/20/2019   04:18:49  (  79.78,  79.89)    0.75                40
 12/20/2019   05:08:53   ( -79.77,-112.76) 12/20/2019   05:09:45  ( -79.79,-112.67)    3.33                52
 12/20/2019   05:59:38   (  79.77,  54.53) 12/20/2019   06:00:49  (  79.80,  54.61)    3.36                71