Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 2 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 02/19/2020   18:10:44   (  -0.07, -75.18) (   0.89, -70.81)  497.02                80
 02/21/2020   06:34:55   (   0.07, -75.16) (   0.27, -76.01)   97.16                80
 02/22/2020   06:13:19   (   0.07, -75.15) (  -0.77, -71.43)  424.01                80
 02/23/2020   18:37:38   (  -0.08, -75.16) (  -0.43, -76.66)  171.62                80
 02/24/2020   18:16:03   (  -0.08, -75.16) (   0.61, -72.09)  350.13                80
 02/26/2020   06:40:13   (   0.08, -75.15) (   0.55, -77.28)  242.57                80
 02/27/2020   06:18:38   (   0.08, -75.16) (  -0.49, -72.71)  279.45                80
 02/28/2020   18:40:17   (  -0.08, -75.17) (  -0.69, -77.94)  315.10                80
 02/29/2020   18:21:22   (  -0.08, -75.18) (   0.35, -73.37)  207.30                80
 03/02/2020   06:45:32   (   0.09, -75.18) (   0.83, -78.56)  384.60                80
 03/03/2020   06:23:55   (   0.09, -75.19) (  -0.16, -73.98)  137.83                80