Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2020 6 2.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/03/2020   10:47:38   (   0.00,-137.20) (   0.40,-138.93)  197.78                80
 06/04/2020   10:26:03   (  -0.00,-137.20) (  -0.66,-134.36)  323.86                80
 06/05/2020   22:47:41   (   0.00,-137.19) (  -0.56,-139.58)  273.36                80
 06/06/2020   22:31:26   (   0.01,-137.18) (   0.51,-135.01)  248.01                80
 06/08/2020   10:52:55   (  -0.00,-137.18) (   0.67,-140.20)  344.24                80
 06/09/2020   10:31:18   (  -0.00,-137.17) (  -0.34,-135.61)  176.88                80
 06/10/2020   22:52:58   (   0.00,-137.15) (  -0.82,-140.85)  421.08                80
 06/11/2020   22:36:41   (   0.00,-137.14) (   0.19,-136.26)   99.96                80
 06/13/2020   10:58:11   (   0.00,-137.13) (   0.98,-141.45)  492.69                80
 06/14/2020   10:36:34   (   0.00,-137.12) (  -0.03,-136.87)   28.26                80