Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 2 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 02/22/2021   18:21:09   (   0.02, -75.19) (   0.87, -71.40)  431.34                80
 02/24/2021   06:42:36   (   0.01, -75.20) (   0.32, -76.58)  156.83                80
 02/25/2021   06:20:59   (   0.01, -75.21) (  -0.69, -71.99)  366.54                80
 02/26/2021   18:42:37   (  -0.01, -75.22) (  -0.43, -77.22)  227.32                80
 02/27/2021   18:26:20   (  -0.00, -75.23) (   0.58, -72.63)  296.65                80
 03/01/2021   06:47:48   (   0.00, -75.25) (   0.55, -77.81)  290.87                80
 03/02/2021   06:26:11   (   0.00, -75.27) (  -0.46, -73.22)  233.16                80
 03/03/2021   18:47:48   (  -0.00, -75.28) (  -0.71, -78.44)  360.07                80
 03/04/2021   18:31:30   (  -0.00, -75.30) (   0.30, -73.85)  164.44                80
 03/06/2021   06:52:59   (   0.00, -75.33) (   0.84, -79.03)  422.14                80
 03/07/2021   06:31:21   (   0.00, -75.35) (  -0.17, -74.44)  102.24                80