Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 1 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/25/2020   06:46:12   (   0.06, -75.20) (   0.85, -78.78)  408.18                80
 01/26/2020   06:24:37   (   0.06, -75.20) (  -0.18, -74.21)  114.02                80
 01/27/2020   18:48:56   (  -0.07, -75.22) (  -1.02, -79.43)  480.11                80
 01/28/2020   18:27:21   (  -0.07, -75.24) (   0.01, -74.86)   42.57                80
 01/31/2020   06:32:36   (   0.07, -75.26) (   0.13, -75.48)   25.51                80
 02/01/2020   06:11:00   (   0.07, -75.27) (  -0.91, -70.91)  497.58                80
 02/02/2020   18:35:20   (  -0.08, -75.31) (  -0.24, -76.15)   95.37                80
 02/03/2020   18:13:44   (  -0.08, -75.32) (   0.74, -71.56)  428.02                80
 02/05/2020   06:37:54   (   0.09, -75.34) (   0.43, -76.76)  162.27                80
 02/06/2020   06:16:19   (   0.09, -75.36) (  -0.60, -72.18)  361.13                80