Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 7 31.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/31/2020   18:25:47   (   0.03, -75.19) (   0.44, -73.42)  201.78                80
 08/02/2020   06:44:37   (  -0.04, -75.19) (   0.72, -78.61)  389.80                80
 08/03/2020   06:28:21   (  -0.04, -75.19) (  -0.30, -74.03)  132.67                80
 08/04/2020   18:47:19   (   0.04, -75.20) (  -0.85, -79.26)  462.19                80
 08/05/2020   18:31:02   (   0.04, -75.21) (   0.16, -74.68)   60.99                80
 08/08/2020   06:30:56   (  -0.04, -75.24) (  -0.02, -75.29)    5.47                80
 08/10/2020   18:33:38   (   0.05, -75.28) (  -0.10, -75.94)   74.94                80
 08/11/2020   18:17:22   (   0.04, -75.30) (   0.92, -71.35)  449.05                80
 08/13/2020   06:36:12   (  -0.05, -75.33) (   0.25, -76.55)  139.86                80