Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 8 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/08/2020   06:30:56   (  -0.04, -75.21) (   0.00, -75.28)    9.42                80
 08/10/2020   18:33:38   (   0.05, -75.24) (  -0.14, -75.93)   79.51                80
 08/11/2020   18:17:22   (   0.05, -75.25) (   0.94, -71.36)  443.78                80
 08/13/2020   06:38:53   (  -0.05, -75.26) (   0.23, -76.55)  147.28                80
 08/14/2020   06:19:56   (  -0.05, -75.27) (  -0.78, -71.97)  375.92                80
 08/15/2020   18:38:55   (   0.06, -75.29) (  -0.36, -77.20)  217.35                80
 08/16/2020   18:22:38   (   0.06, -75.31) (   0.65, -72.62)  306.12                80
 08/18/2020   06:41:29   (  -0.07, -75.32) (   0.46, -77.82)  284.27                80
 08/19/2020   06:25:13   (  -0.07, -75.34) (  -0.55, -73.24)  239.43                80
 08/20/2020   18:44:11   (   0.08, -75.37) (  -0.59, -78.47)  353.11                80