Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 2 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 02/08/2020   18:21:43   (  -0.06, -75.20) (   0.49, -72.84)  269.57                80
 02/10/2020   06:43:13   (   0.07, -75.21) (   0.72, -78.03)  321.78                80
 02/11/2020   06:21:37   (   0.07, -75.22) (  -0.31, -73.46)  200.47                80
 02/12/2020   18:43:17   (  -0.07, -75.23) (  -0.83, -78.70)  394.73                80
 02/13/2020   18:24:22   (  -0.07, -75.24) (   0.20, -74.12)  128.08                80
 02/15/2020   06:48:31   (   0.07, -75.26) (   1.01, -79.31)  461.93                80
 02/16/2020   06:26:56   (   0.07, -75.27) (  -0.03, -74.73)   61.04                80
 02/18/2020   18:32:20   (  -0.08, -75.31) (  -0.12, -75.39)   10.20                80
 02/21/2020   06:34:55   (   0.09, -75.35) (   0.24, -76.01)   75.04                80