Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 4 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/26/2020   18:41:47   (   0.02, -75.17) (  -0.69, -78.19)  345.24                80
 04/27/2020   18:25:32   (   0.02, -75.17) (   0.37, -73.62)  176.77                80
 04/29/2020   06:47:02   (  -0.01, -75.17) (   0.82, -78.81)  415.69                80
 04/30/2020   06:25:26   (  -0.01, -75.17) (  -0.24, -74.24)  106.38                80
 05/01/2020   18:47:05   (   0.01, -75.18) (  -0.95, -79.46)  488.19                80
 05/02/2020   18:30:48   (   0.01, -75.19) (   0.05, -74.88)   34.50                80
 05/05/2020   06:33:23   (  -0.01, -75.20) (   0.08, -75.50)   34.18                80
 05/06/2020   06:11:48   (  -0.01, -75.21) (  -0.98, -70.93)  488.72                80
 05/07/2020   18:33:26   (   0.01, -75.24) (  -0.21, -76.15)  104.81                80
 05/08/2020   18:17:10   (   0.01, -75.25) (   0.85, -71.58)  418.45                80