Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 5 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/20/2021   06:27:48   (  -0.01, -75.19) (  -0.49, -73.11)  237.54                80
 05/21/2021   18:49:24   (   0.01, -75.18) (  -0.68, -78.32)  356.85                80
 05/22/2021   18:30:26   (   0.01, -75.18) (   0.36, -73.73)  166.10                80
 05/24/2021   06:54:34   (  -0.01, -75.18) (   0.82, -78.90)  423.91                80
 05/25/2021   06:32:56   (  -0.02, -75.18) (  -0.22, -74.32)   99.02                80
 05/26/2021   18:54:33   (   0.02, -75.18) (  -0.95, -79.53)  495.12                80
 05/27/2021   18:38:15   (   0.02, -75.19) (   0.09, -74.94)   28.21                80
 05/30/2021   06:38:05   (  -0.01, -75.20) (   0.04, -75.53)   37.49                80
 05/31/2021   06:21:47   (  -0.00, -75.20) (  -0.94, -70.93)  486.52                80
 06/01/2021   18:40:43   (   0.00, -75.21) (  -0.22, -76.14)  106.14                80
 06/02/2021   18:24:25   (  -0.00, -75.23) (   0.82, -71.55)  418.41                80