Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 10 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/20/2020   06:50:16   (   0.01, -75.18) (   0.86, -79.06)  442.11                80
 10/21/2020   06:31:19   (   0.01, -75.18) (  -0.17, -74.48)   80.06                80
 10/23/2020   18:34:01   (  -0.01, -75.19) (   0.02, -75.12)    7.79                80
 10/26/2020   06:36:34   (   0.00, -75.20) (   0.09, -75.73)   60.27                80
 10/27/2020   06:14:58   (   0.00, -75.21) (  -0.94, -71.15)  463.10                80
 10/28/2020   18:36:36   (  -0.00, -75.23) (  -0.24, -76.37)  129.83                80
 10/29/2020   18:20:19   (  -0.00, -75.25) (   0.79, -71.79)  394.04                80
 10/31/2020   06:41:48   (   0.00, -75.26) (   0.41, -76.97)  195.26                80
 11/01/2020   06:20:11   (   0.00, -75.28) (  -0.62, -72.39)  328.73                80
 11/02/2020   18:41:50   (  -0.00, -75.31) (  -0.55, -77.62)  263.55                80