Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 5 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/25/2021   06:32:56   (  -0.02, -75.19) (  -0.20, -74.31)   99.36                80
 05/26/2021   18:54:32   (   0.02, -75.19) (  -0.98, -79.52)  494.07                80
 05/27/2021   18:38:15   (   0.02, -75.20) (   0.06, -74.94)   29.48                80
 05/30/2021   06:38:05   (  -0.02, -75.21) (   0.07, -75.52)   36.14                80
 05/31/2021   06:21:47   (  -0.01, -75.22) (  -0.97, -70.94)  487.95                80
 06/01/2021   18:40:43   (   0.01, -75.24) (  -0.21, -76.15)  104.12                80
 06/02/2021   18:24:26   (   0.01, -75.25) (   0.83, -71.56)  420.63                80
 06/04/2021   06:43:13   (  -0.01, -75.28) (   0.33, -76.73)  166.73                80
 06/05/2021   06:26:56   (  -0.01, -75.29) (  -0.71, -72.15)  358.36                80
 06/06/2021   18:45:53   (   0.02, -75.32) (  -0.41, -77.37)  232.69                80
 06/07/2021   18:29:35   (   0.02, -75.35) (   0.57, -72.77)  292.75                80