Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 2 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 02/15/2020   06:48:32   (   0.06, -75.20) (   0.99, -79.31)  468.68                80
 02/16/2020   06:26:56   (   0.06, -75.20) (  -0.05, -74.74)   53.24                80
 02/18/2020   18:32:20   (  -0.07, -75.23) (  -0.12, -75.39)   19.16                80
 02/21/2020   06:34:55   (   0.08, -75.24) (   0.25, -76.01)   88.03                80
 02/22/2020   06:13:20   (   0.08, -75.25) (  -0.78, -71.44)  434.80                80
 02/23/2020   18:34:59   (  -0.08, -75.28) (  -0.41, -76.67)  158.35                80
 02/24/2020   18:16:03   (  -0.08, -75.30) (   0.62, -72.09)  365.12                80
 02/26/2020   06:40:14   (   0.08, -75.32) (   0.55, -77.29)  224.91                80
 02/27/2020   06:18:38   (   0.08, -75.34) (  -0.49, -72.71)  298.78                80
 02/28/2020   18:40:19   (  -0.09, -75.38) (  -0.64, -77.96)  293.36                80