Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 11 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/25/2019   18:41:48   (   0.00, -75.22) (  -0.59, -77.78)  292.33                80
 11/26/2019   18:20:12   (   0.00, -75.24) (   0.43, -73.20)  231.37                80
 11/28/2019   06:44:25   (  -0.00, -75.27) (   0.70, -78.42)  358.08                80
 11/29/2019   06:22:49   (   0.00, -75.30) (  -0.32, -73.84)  165.89                80
 11/30/2019   18:47:09   (  -0.01, -75.34) (  -0.84, -79.08)  426.30                80
 12/01/2019   18:25:33   (  -0.01, -75.36) (   0.18, -74.50)   98.20                80
 12/03/2019   06:49:45   (   0.02, -75.41) (   0.95, -79.71)  489.85                80
 12/04/2019   06:28:10   (   0.02, -75.44) (  -0.07, -75.14)   35.07                80
 12/06/2019   18:33:34   (  -0.02, -75.53) (  -0.05, -75.80)   30.74                80
 12/07/2019   18:11:58   (  -0.02, -75.56) (   0.97, -71.23)  494.76                80