Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 8 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)
 08/20/2020   18:44:09   (   0.06, -75.19) (  -0.68, -78.45)  371.05                80
 08/21/2020   18:27:53   (   0.06, -75.20) (   0.34, -73.86)  151.66                80
 08/23/2020   06:46:43   (  -0.06, -75.20) (   0.82, -79.06)  440.07                80
 08/24/2020   06:30:26   (  -0.06, -75.21) (  -0.20, -74.47)   82.87                80
 08/26/2020   18:33:08   (   0.07, -75.24) (   0.08, -75.12)   12.55                80
 08/29/2020   06:33:02   (  -0.07, -75.26) (   0.06, -75.74)   55.29                80
 08/30/2020   06:16:47   (  -0.07, -75.27) (  -1.02, -71.17)  468.37                80
 08/31/2020   18:35:44   (   0.08, -75.30) (  -0.18, -76.38)  123.83                80
 09/01/2020   18:19:29   (   0.08, -75.32) (   0.90, -71.82)  400.44                80