Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 8 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/17/2019   18:31:59   (   0.04, -75.19) (  -0.15, -76.02)   95.65                80
 08/18/2019   18:15:45   (   0.04, -75.21) (   0.90, -71.46)  427.55                80
 08/20/2019   06:37:17   (  -0.05, -75.23) (   0.27, -76.67)  164.01                80
 08/21/2019   06:15:42   (  -0.04, -75.25) (  -0.73, -72.09)  359.36                80
 08/22/2019   18:37:22   (   0.05, -75.29) (  -0.42, -77.33)  233.12                80
 08/23/2019   18:21:08   (   0.05, -75.32) (   0.63, -72.77)  290.46                80
 08/25/2019   06:42:40   (  -0.06, -75.34) (   0.53, -77.98)  300.52                80
 08/26/2019   06:21:04   (  -0.06, -75.36) (  -0.47, -73.40)  222.98                80
 08/27/2019   18:42:45   (   0.07, -75.41) (  -0.69, -78.65)  369.54                80
 08/28/2019   18:26:30   (   0.07, -75.43) (   0.37, -74.08)  154.32                80
 08/30/2019   06:48:03   (  -0.07, -75.47) (   0.78, -79.29)  435.65                80