Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 6 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/02/2020   06:34:37   (  -0.01, -75.20) (   0.09, -75.64)   49.65                80
 07/03/2020   06:13:01   (  -0.02, -75.21) (  -0.97, -71.07)  472.52                80
 07/04/2020   18:34:40   (   0.02, -75.21) (  -0.23, -76.29)  122.50                80
 07/05/2020   18:18:23   (   0.02, -75.22) (   0.78, -71.71)  400.40                80
 07/07/2020   06:39:54   (  -0.02, -75.24) (   0.35, -76.90)  189.48                80
 07/08/2020   06:18:17   (  -0.01, -75.25) (  -0.66, -72.32)  333.88                80
 07/09/2020   18:39:55   (   0.01, -75.27) (  -0.53, -77.54)  259.56                80
 07/10/2020   18:23:40   (  -0.00, -75.29) (   0.54, -72.97)  264.60                80
 07/12/2020   06:45:09   (   0.00, -75.32) (   0.66, -78.16)  323.56                80
 07/13/2020   06:23:34   (   0.01, -75.34) (  -0.41, -73.59)  200.69                80