Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2019 6 18.  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)
 06/25/2019   15:37:24   (  80.09, -92.82) 06/25/2019   15:36:13  (  80.08, -92.87)    2.17                71
 06/25/2019   16:28:09   ( -80.10,  74.47) 06/25/2019   16:27:19  ( -80.08,  74.46)    1.48                50
 06/25/2019   17:18:53   (  80.09,-118.14) 06/25/2019   17:18:13  (  80.09,-118.10)    0.93                40
 06/25/2019   18:09:38   ( -80.09,  49.15) 06/25/2019   18:09:19  ( -80.10,  49.22)    1.71                19
 06/25/2019   19:00:22   (  80.11,-143.77) 06/25/2019   19:00:13  (  80.09,-143.66)    3.20                 9
 06/25/2019   19:51:07   ( -80.11,  23.53) 06/25/2019   19:51:19  ( -80.10,  23.66)    3.23                12
 06/25/2019   20:41:51   (  80.11,-169.09) 06/25/2019   20:42:14  (  80.09,-169.21)    3.38                23
 06/25/2019   21:32:36   ( -80.11,  -1.80) 06/25/2019   21:33:20  ( -80.09,  -1.89)    2.62                44
 06/25/2019   22:23:20   (  80.10, 165.59) 06/25/2019   22:24:14  (  80.11, 165.55)    0.78                54