Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 4 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/01/2020   18:17:59   (  -0.01, -75.14) (   0.72, -71.85)  375.29                80
 04/03/2020   06:39:30   (   0.01, -75.14) (   0.42, -77.05)  217.11                80
 04/04/2020   06:17:54   (   0.02, -75.15) (  -0.56, -72.47)  305.34                80
 04/05/2020   18:39:33   (  -0.02, -75.17) (  -0.56, -77.70)  288.75                80
 04/06/2020   18:23:17   (  -0.01, -75.17) (   0.43, -73.12)  233.78                80
 04/08/2020   06:44:48   (  -0.01, -75.19) (   0.72, -78.32)  357.76                80
 04/09/2020   06:23:13   (  -0.02, -75.20) (  -0.33, -73.75)  164.92                80
 04/10/2020   18:44:52   (   0.03, -75.22) (  -0.79, -78.99)  428.61                80
 04/11/2020   18:28:35   (   0.03, -75.24) (   0.20, -74.40)   94.80                80
 04/13/2020   06:50:07   (  -0.03, -75.26) (   0.95, -79.60)  495.38                80
 04/14/2020   06:28:31   (  -0.02, -75.27) (  -0.10, -75.03)   28.27                80