Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 8 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/13/2020   06:36:12   (  -0.06, -75.20) (   0.27, -76.54)  154.05                80
 08/14/2020   06:19:55   (  -0.05, -75.19) (  -0.75, -71.96)  367.62                80
 08/15/2020   18:38:54   (   0.06, -75.20) (  -0.40, -77.19)  227.79                80
 08/16/2020   18:22:37   (   0.06, -75.19) (   0.62, -72.61)  294.12                80
 08/18/2020   06:41:29   (  -0.07, -75.19) (   0.49, -77.82)  298.93                80
 08/19/2020   06:25:12   (  -0.07, -75.19) (  -0.53, -73.23)  223.24                80
 08/20/2020   18:44:09   (   0.08, -75.20) (  -0.67, -78.45)  371.35                80
 08/21/2020   18:27:53   (   0.08, -75.20) (   0.34, -73.87)  151.36                80
 08/23/2020   06:46:44   (  -0.08, -75.21) (   0.76, -79.07)  440.37                80
 08/24/2020   06:30:28   (  -0.08, -75.21) (  -0.25, -74.49)   82.49                80