Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 2 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 02/11/2020   06:21:37   (   0.06, -75.20) (  -0.31, -73.46)  197.85                80
 02/12/2020   18:43:18   (  -0.06, -75.20) (  -0.84, -78.70)  398.10                80
 02/13/2020   18:27:02   (  -0.06, -75.21) (   0.20, -74.12)  123.90                80
 02/15/2020   06:48:32   (   0.06, -75.21) (   0.96, -79.32)  467.79                80
 02/16/2020   06:26:56   (   0.06, -75.21) (  -0.02, -74.73)   54.46                80
 02/18/2020   18:29:41   (  -0.07, -75.24) (  -0.09, -75.40)   18.22                80
 02/21/2020   06:34:55   (   0.08, -75.26) (   0.28, -76.01)   85.82                80
 02/22/2020   06:13:19   (   0.08, -75.27) (  -0.76, -71.43)  437.31                80
 02/23/2020   18:34:59   (  -0.08, -75.30) (  -0.37, -76.68)  156.31                80
 02/24/2020   18:18:44   (  -0.08, -75.32) (   0.66, -72.10)  367.42                80