Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 7 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/27/2021   06:37:39   (  -0.10, -75.23) (  -0.13, -75.02)   23.69                80
 07/29/2021   18:40:18   (   0.11, -75.26) (   0.04, -75.65)   43.58                80
 07/30/2021   18:24:00   (   0.10, -75.28) (   1.03, -71.05)  481.58                80
 08/01/2021   06:45:28   (  -0.12, -75.31) (   0.07, -76.24)  105.44                80
 08/02/2021   06:23:50   (  -0.11, -75.33) (  -0.92, -71.64)  419.65                80
 08/03/2021   18:45:26   (   0.13, -75.35) (  -0.21, -76.86)  171.64                80
 08/04/2021   18:29:08   (   0.13, -75.37) (   0.85, -72.27)  353.83                80
 08/06/2021   06:50:36   (  -0.14, -75.41) (   0.33, -77.45)  232.35                80
 08/07/2021   06:28:58   (  -0.14, -75.43) (  -0.72, -72.86)  293.12                80