Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 5 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/24/2021   06:54:33   (  -0.02, -75.19) (   0.84, -78.90)  423.79                80
 05/25/2021   06:32:56   (  -0.02, -75.19) (  -0.20, -74.31)   99.43                80
 05/26/2021   18:54:32   (   0.03, -75.19) (  -0.97, -79.52)  494.21                80
 05/27/2021   18:38:15   (   0.02, -75.20) (   0.07, -74.94)   29.26                80
 05/30/2021   06:38:05   (  -0.02, -75.21) (   0.06, -75.52)   36.23                80
 05/31/2021   06:21:47   (  -0.02, -75.22) (  -0.98, -70.94)  487.82                80
 06/01/2021   18:40:43   (   0.02, -75.23) (  -0.19, -76.15)  104.42                80
 06/02/2021   18:24:26   (   0.01, -75.25) (   0.85, -71.56)  420.28                80
 06/04/2021   06:43:13   (  -0.02, -75.27) (   0.31, -76.74)  166.95                80
 06/05/2021   06:26:56   (  -0.02, -75.29) (  -0.73, -72.15)  358.12                80