Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 3 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/17/2021   06:44:23   (  -0.04, -75.22) (   0.33, -76.89)  190.92                80
 03/18/2021   06:22:46   (  -0.04, -75.22) (  -0.69, -72.30)  332.33                80
 03/19/2021   18:44:23   (   0.04, -75.23) (  -0.46, -77.52)  261.32                80
 03/20/2021   18:28:05   (   0.04, -75.24) (   0.56, -72.93)  262.41                80
 03/22/2021   06:49:34   (  -0.03, -75.25) (   0.60, -78.12)  325.94                80
 03/23/2021   06:27:56   (  -0.03, -75.26) (  -0.42, -73.53)  197.74                80
 03/24/2021   18:49:33   (   0.02, -75.27) (  -0.78, -78.73)  395.45                80
 03/25/2021   18:33:15   (   0.02, -75.28) (   0.24, -74.15)  128.87                80
 03/27/2021   06:54:43   (  -0.01, -75.31) (   0.92, -79.33)  458.28                80
 03/28/2021   06:33:07   (  -0.01, -75.33) (  -0.15, -74.75)   66.00                80