Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2019 4 15.  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)
 04/18/2019   14:33:07   ( -80.18, 102.50) 04/18/2019   14:31:52  ( -80.20, 102.38)    3.47                75
 04/18/2019   15:23:53   (  80.20, -90.47) 04/18/2019   15:22:58  (  80.19, -90.54)    1.91                55
 04/18/2019   16:14:37   ( -80.20,  76.88) 04/18/2019   16:13:53  ( -80.20,  76.85)    0.63                44
 04/18/2019   17:05:22   (  80.20,-115.78) 04/18/2019   17:04:58  (  80.21,-115.75)    1.47                24
 04/18/2019   17:56:06   ( -80.20,  51.56) 04/18/2019   17:55:53  ( -80.22,  51.64)    2.83                13
 04/18/2019   18:46:52   (  80.22,-141.41) 04/18/2019   18:46:59  (  80.21,-141.29)    2.78                 7
 04/18/2019   19:37:36   ( -80.22,  25.94) 04/18/2019   19:37:54  ( -80.22,  26.10)    3.13                18
 04/18/2019   20:28:21   (  80.22,-166.73) 04/18/2019   20:29:00  (  80.21,-166.82)    2.09                39
 04/18/2019   21:19:05   ( -80.21,   0.62) 04/18/2019   21:19:55  ( -80.21,   0.57)    1.02                50
 04/18/2019   22:09:50   (  80.21, 167.96) 04/18/2019   22:11:00  (  80.22, 167.97)    1.51                70