Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 1 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/26/2020   06:24:36   (   0.06, -75.19) (  -0.14, -74.20)  112.60                80
 01/27/2020   18:48:56   (  -0.07, -75.20) (  -1.01, -79.44)  482.94                80
 01/28/2020   18:27:21   (  -0.07, -75.20) (   0.02, -74.86)   39.03                80
 01/31/2020   06:32:36   (   0.07, -75.21) (   0.12, -75.48)   30.56                80
 02/01/2020   06:11:00   (   0.07, -75.22) (  -0.92, -70.91)  491.86                80
 02/02/2020   18:35:20   (  -0.08, -75.24) (  -0.29, -76.14)  102.48                80
 02/03/2020   18:13:44   (  -0.07, -75.25) (   0.74, -71.56)  420.15                80
 02/05/2020   06:37:54   (   0.09, -75.26) (   0.43, -76.76)  170.88                80
 02/06/2020   06:16:19   (   0.09, -75.27) (  -0.60, -72.18)  351.78                80
 02/07/2020   18:40:39   (  -0.10, -75.29) (  -0.54, -77.42)  242.27                80
 02/08/2020   18:19:03   (  -0.09, -75.31) (   0.43, -72.84)  280.68                80