Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 2 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)
 02/12/2020   18:43:18   (  -0.06, -75.20) (  -0.82, -78.70)  398.08                80
 02/13/2020   18:27:02   (  -0.06, -75.21) (   0.16, -74.11)  123.96                80
 02/15/2020   06:48:32   (   0.06, -75.21) (   0.99, -79.31)  467.84                80
 02/16/2020   06:26:56   (   0.06, -75.21) (  -0.04, -74.74)   54.33                80
 02/18/2020   18:29:40   (  -0.07, -75.24) (  -0.12, -75.39)   18.12                80
 02/21/2020   06:34:55   (   0.08, -75.26) (   0.25, -76.01)   85.73                80
 02/22/2020   06:13:20   (   0.08, -75.27) (  -0.79, -71.44)  437.36                80
 02/23/2020   18:34:59   (  -0.09, -75.30) (  -0.40, -76.67)  156.11                80
 02/24/2020   18:18:43   (  -0.08, -75.32) (   0.64, -72.10)  367.61                80