Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 2 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)
 02/24/2021   06:42:37   (  -0.03, -75.20) (   0.30, -76.58)  157.90                80
 02/25/2021   06:20:59   (  -0.01, -75.20) (  -0.71, -71.99)  365.88                80
 02/26/2021   18:42:37   (  -0.01, -75.21) (  -0.47, -77.21)  227.78                80
 02/27/2021   18:26:20   (  -0.00, -75.22) (   0.60, -72.63)  296.12                80
 03/01/2021   06:47:47   (   0.00, -75.25) (   0.60, -77.80)  291.53                80
 03/02/2021   06:26:11   (  -0.00, -75.26) (  -0.47, -73.22)  232.38                80
 03/03/2021   18:47:48   (   0.00, -75.27) (  -0.70, -78.44)  361.01                80
 03/04/2021   18:31:31   (   0.00, -75.29) (   0.31, -73.85)  163.39                80
 03/06/2021   06:52:59   (   0.00, -75.32) (   0.83, -79.04)  423.18                80
 03/07/2021   06:31:22   (   0.00, -75.34) (  -0.18, -74.45)  101.13                80
 03/08/2021   18:52:59   (  -0.00, -75.35) (  -0.98, -79.66)  492.00                80