Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 10 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/05/2020   06:34:33   (  -0.01, -75.22) (   0.00, -75.32)   12.00                80
 10/07/2020   18:34:35   (   0.01, -75.27) (  -0.16, -75.96)   79.81                80
 10/08/2020   18:18:18   (   0.01, -75.28) (   0.86, -71.38)  444.15                80
 10/10/2020   06:39:48   (  -0.01, -75.29) (   0.28, -76.57)  146.17                80
 10/11/2020   06:18:11   (  -0.01, -75.31) (  -0.75, -71.99)  377.80                80
 10/12/2020   18:39:51   (   0.01, -75.35) (  -0.38, -77.23)  213.47                80
 10/13/2020   18:23:34   (   0.01, -75.37) (   0.65, -72.65)  311.05                80
 10/15/2020   06:45:02   (  -0.01, -75.39) (   0.56, -77.83)  278.00                80
 10/16/2020   06:23:26   (  -0.01, -75.42) (  -0.47, -73.24)  246.74                80
 10/17/2020   18:45:05   (   0.01, -75.46) (  -0.65, -78.48)  343.68                80
 10/18/2020   18:28:49   (   0.01, -75.49) (   0.38, -73.90)  181.43                80