Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 7 31.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/01/2021   06:45:27   (  -0.11, -75.22) (   0.13, -76.22)  114.98                80
 08/02/2021   06:26:30   (  -0.11, -75.22) (  -0.93, -71.64)  408.93                80
 08/03/2021   18:45:25   (   0.12, -75.24) (  -0.26, -76.84)  183.12                80
 08/04/2021   18:29:07   (   0.12, -75.25) (   0.79, -72.26)  341.16                80
 08/06/2021   06:50:35   (  -0.13, -75.26) (   0.38, -77.43)  247.79                80
 08/07/2021   06:28:57   (  -0.13, -75.27) (  -0.68, -72.85)  276.54                80
 08/08/2021   18:50:33   (   0.14, -75.29) (  -0.50, -78.05)  315.02                80
 08/09/2021   18:34:15   (   0.14, -75.31) (   0.55, -73.47)  209.92                80
 08/11/2021   06:55:42   (  -0.15, -75.33) (   0.63, -78.64)  377.60                80
 08/12/2021   06:34:05   (  -0.14, -75.35) (  -0.43, -74.06)  147.52                80
 08/13/2021   18:55:40   (   0.15, -75.38) (  -0.74, -79.26)  443.20                80