Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 1 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)
 01/27/2020   18:48:57   (  -0.06, -75.19) (  -1.00, -79.44)  483.92                80
 01/28/2020   18:27:21   (  -0.06, -75.19) (   0.03, -74.86)   37.63                80
 01/31/2020   06:32:36   (   0.06, -75.19) (   0.10, -75.49)   33.13                80
 02/01/2020   06:11:00   (   0.06, -75.19) (  -0.93, -70.91)  488.89                80
 02/02/2020   18:35:20   (  -0.07, -75.21) (  -0.28, -76.14)  106.32                80
 02/03/2020   18:13:44   (  -0.07, -75.21) (   0.75, -71.56)  415.85                80
 02/05/2020   06:37:55   (   0.08, -75.22) (   0.41, -76.76)  175.79                80
 02/06/2020   06:16:19   (   0.08, -75.22) (  -0.62, -72.19)  346.42                80
 02/07/2020   18:40:38   (  -0.09, -75.24) (  -0.58, -77.41)  248.50                80
 02/08/2020   18:19:03   (  -0.09, -75.24) (   0.45, -72.84)  273.97                80