Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2020 8 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/28/2020   22:56:10   (  -0.04,-137.20) (  -0.97,-141.38)  476.35                80
 08/29/2020   22:39:54   (  -0.04,-137.20) (   0.04,-136.79)   45.72                80
 09/01/2020   10:39:47   (   0.02,-137.20) (   0.09,-137.41)   23.63                80
 09/02/2020   10:23:32   (   0.02,-137.20) (  -0.99,-132.84)  498.39                80
 09/03/2020   22:42:29   (  -0.02,-137.19) (  -0.22,-138.05)   98.43                80
 09/04/2020   22:26:13   (  -0.02,-137.19) (   0.80,-133.47)  423.38                80
 09/06/2020   10:45:03   (   0.02,-137.19) (   0.35,-138.67)  168.29                80
 09/07/2020   10:28:47   (   0.02,-137.18) (  -0.67,-134.09)  353.10                80
 09/08/2020   22:47:45   (  -0.01,-137.16) (  -0.48,-139.31)  244.98                80
 09/09/2020   22:31:28   (  -0.01,-137.15) (   0.54,-134.73)  275.83                80