Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 2 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 02/27/2020   06:18:37   (   0.06, -75.15) (  -0.47, -72.71)  278.47                80
 02/28/2020   18:40:18   (  -0.06, -75.16) (  -0.66, -77.95)  316.74                80
 02/29/2020   18:24:01   (  -0.06, -75.17) (   0.32, -73.36)  205.46                80
 03/02/2020   06:45:32   (   0.06, -75.17) (   0.85, -78.56)  386.57                80
 03/03/2020   06:23:56   (   0.07, -75.17) (  -0.19, -73.98)  135.65                80
 03/04/2020   18:45:35   (  -0.07, -75.19) (  -0.99, -79.21)  459.21                80
 03/05/2020   18:29:20   (  -0.07, -75.19) (   0.05, -74.64)   63.24                80
 03/08/2020   06:31:55   (   0.08, -75.21) (   0.09, -75.26)    5.65                80
 03/10/2020   18:31:59   (  -0.08, -75.24) (  -0.22, -75.92)   76.64                80
 03/11/2020   18:15:43   (  -0.08, -75.26) (   0.82, -71.34)  446.63                80