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   06:31:53   (  -0.01, -75.22) (   0.03, -75.32)   11.30                80
 10/07/2020   18:34:35   (   0.01, -75.26) (  -0.13, -75.97)   80.72                80
 10/08/2020   18:18:19   (   0.00, -75.27) (   0.90, -71.39)  442.96                80
 10/10/2020   06:39:47   (  -0.01, -75.28) (   0.31, -76.57)  147.14                80
 10/11/2020   06:18:11   (  -0.01, -75.30) (  -0.72, -71.99)  376.56                80
 10/12/2020   18:39:50   (   0.01, -75.33) (  -0.41, -77.22)  215.93                80
 10/13/2020   18:23:34   (   0.01, -75.35) (   0.62, -72.64)  308.25                80
 10/15/2020   06:45:03   (  -0.01, -75.37) (   0.52, -77.83)  280.55                80
 10/16/2020   06:23:26   (  -0.01, -75.39) (  -0.50, -73.25)  243.87                80
 10/17/2020   18:45:05   (   0.01, -75.43) (  -0.68, -78.48)  347.75                80