Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 2 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)
 02/21/2021   18:37:25   (  -0.01, -75.18) (  -0.22, -75.98)   91.27                80
 02/22/2021   18:21:09   (  -0.01, -75.19) (   0.85, -71.40)  432.17                80
 02/24/2021   06:42:36   (   0.00, -75.20) (   0.34, -76.57)  156.83                80
 02/25/2021   06:21:00   (   0.00, -75.21) (  -0.73, -72.00)  366.51                80
 02/26/2021   18:42:37   (   0.00, -75.22) (  -0.45, -77.21)  227.34                80
 02/27/2021   18:26:19   (   0.00, -75.23) (   0.57, -72.62)  296.68                80
 03/01/2021   06:47:48   (  -0.00, -75.26) (   0.57, -77.81)  290.81                80
 03/02/2021   06:26:10   (  -0.00, -75.27) (  -0.44, -73.22)  233.30                80
 03/03/2021   18:47:48   (   0.00, -75.28) (  -0.73, -78.44)  359.89                80
 03/04/2021   18:31:31   (   0.00, -75.30) (   0.35, -73.86)  164.63                80