Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 8 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/11/2020   18:17:22   (   0.05, -75.21) (   0.90, -71.35)  439.53                80
 08/13/2020   06:36:12   (  -0.06, -75.20) (   0.26, -76.55)  154.02                80
 08/14/2020   06:19:56   (  -0.05, -75.19) (  -0.76, -71.96)  367.63                80
 08/15/2020   18:38:54   (   0.06, -75.19) (  -0.39, -77.19)  227.90                80
 08/16/2020   18:22:37   (   0.06, -75.19) (   0.63, -72.61)  293.99                80
 08/18/2020   06:41:28   (  -0.07, -75.19) (   0.53, -77.80)  298.93                80
 08/19/2020   06:25:11   (  -0.07, -75.19) (  -0.48, -73.22)  223.25                80
 08/20/2020   18:44:10   (   0.08, -75.19) (  -0.66, -78.45)  371.48                80
 08/21/2020   18:27:53   (   0.07, -75.20) (   0.36, -73.87)  151.20                80
 08/23/2020   06:46:43   (  -0.08, -75.20) (   0.80, -79.06)  440.38                80
 08/24/2020   06:30:27   (  -0.08, -75.21) (  -0.21, -74.48)   82.52                80