Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 1 31.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 02/01/2020   06:11:00   (   0.05, -75.20) (  -0.88, -70.90)  489.48                80
 02/02/2020   18:35:20   (  -0.06, -75.20) (  -0.27, -76.14)  106.86                80
 02/03/2020   18:13:45   (  -0.06, -75.21) (   0.76, -71.57)  414.92                80
 02/05/2020   06:37:55   (   0.07, -75.21) (   0.40, -76.76)  176.92                80
 02/06/2020   06:16:19   (   0.07, -75.21) (  -0.63, -72.19)  344.89                80
 02/07/2020   18:40:39   (  -0.07, -75.21) (  -0.59, -77.41)  251.20                80
 02/08/2020   18:19:03   (  -0.07, -75.22) (   0.45, -72.84)  270.89                80
 02/10/2020   06:43:14   (   0.08, -75.23) (   0.72, -78.04)  320.23                80
 02/11/2020   06:21:38   (   0.08, -75.24) (  -0.31, -73.46)  202.10                80
 02/12/2020   18:45:58   (  -0.08, -75.25) (  -0.84, -78.70)  393.01                80
 02/13/2020   18:24:23   (  -0.08, -75.26) (   0.19, -74.13)  129.82                80