Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 10 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/12/2020   18:39:49   (   0.01, -75.24) (  -0.43, -77.21)  224.68                80
 10/13/2020   18:23:33   (   0.01, -75.25) (   0.60, -72.63)  298.62                80
 10/15/2020   06:45:02   (  -0.02, -75.25) (   0.53, -77.82)  292.36                80
 10/16/2020   06:23:26   (  -0.01, -75.27) (  -0.50, -73.24)  231.25                80
 10/17/2020   18:45:04   (   0.01, -75.30) (  -0.69, -78.47)  360.84                80
 10/18/2020   18:28:48   (   0.01, -75.31) (   0.35, -73.89)  163.09                80
 10/20/2020   06:50:16   (  -0.01, -75.32) (   0.85, -79.07)  426.95                80
 10/21/2020   06:28:39   (  -0.01, -75.34) (  -0.18, -74.49)   96.98                80
 10/22/2020   18:50:18   (   0.01, -75.38) (  -0.99, -79.71)  494.61                80
 10/23/2020   18:34:01   (   0.01, -75.40) (   0.05, -75.13)   29.92                80