Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 8 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/21/2020   18:27:52   (   0.05, -75.19) (   0.32, -73.86)  151.38                80
 08/23/2020   06:46:43   (  -0.05, -75.19) (   0.84, -79.05)  440.79                80
 08/24/2020   06:30:27   (  -0.05, -75.20) (  -0.24, -74.48)   81.93                80
 08/26/2020   18:33:08   (   0.06, -75.22) (   0.06, -75.12)   11.20                80
 08/29/2020   06:33:03   (  -0.07, -75.23) (   0.02, -75.74)   57.49                80
 08/30/2020   06:16:46   (  -0.07, -75.25) (  -1.00, -71.16)  465.89                80
 08/31/2020   18:35:45   (   0.07, -75.28) (  -0.15, -76.39)  126.65                80
 09/01/2020   18:19:28   (   0.07, -75.29) (   0.87, -71.81)  397.37                80
 09/03/2020   06:38:19   (  -0.08, -75.32) (   0.28, -77.01)  192.12                80