Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 7 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/03/2020   06:13:01   (   0.00, -75.20) (  -0.94, -71.06)  471.98                80
 07/04/2020   18:34:40   (   0.02, -75.20) (  -0.20, -76.29)  123.97                80
 07/05/2020   18:18:24   (   0.02, -75.21) (   0.81, -71.71)  398.75                80
 07/07/2020   06:39:53   (  -0.01, -75.22) (   0.37, -76.90)  191.35                80
 07/08/2020   06:18:17   (   0.00, -75.23) (  -0.64, -72.31)  331.92                80
 07/09/2020   18:39:55   (  -0.01, -75.25) (  -0.55, -77.54)  261.86                80
 07/10/2020   18:23:39   (  -0.01, -75.26) (   0.52, -72.97)  262.01                80
 07/12/2020   06:45:09   (   0.02, -75.29) (   0.67, -78.15)  326.62                80
 07/13/2020   06:23:33   (   0.02, -75.31) (  -0.40, -73.58)  197.35                80
 07/14/2020   18:45:11   (  -0.01, -75.33) (  -0.78, -78.81)  395.77                80
 07/15/2020   18:28:55   (  -0.01, -75.35) (   0.24, -74.23)  128.44                80