Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 7 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/12/2020   06:45:09   (   0.01, -75.21) (   0.64, -78.16)  335.45                80
 07/13/2020   06:23:33   (   0.01, -75.22) (  -0.36, -73.57)  187.35                80
 07/14/2020   18:45:11   (  -0.00, -75.23) (  -0.82, -78.80)  406.68                80
 07/15/2020   18:28:56   (   0.00, -75.24) (   0.25, -74.23)  116.28                80
 07/17/2020   06:50:26   (  -0.02, -75.26) (   0.90, -79.42)  474.53                80
 07/18/2020   06:28:50   (  -0.02, -75.27) (  -0.11, -74.84)   48.50                80
 07/20/2020   18:31:31   (   0.01, -75.30) (  -0.05, -75.48)   21.91                80
 07/23/2020   06:36:46   (  -0.01, -75.33) (   0.14, -76.11)   87.91                80
 07/24/2020   06:15:10   (  -0.00, -75.35) (  -0.87, -71.52)  435.94                80