Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2020 7 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/07/2020   22:41:26   (  -0.03,-137.15) (  -0.21,-137.98)   93.73                80
 07/08/2020   22:25:10   (  -0.03,-137.14) (   0.80,-133.39)  427.24                80
 07/10/2020   10:46:40   (   0.03,-137.13) (   0.34,-138.59)  166.06                80
 07/11/2020   10:25:04   (   0.03,-137.12) (  -0.67,-134.01)  354.58                80
 07/12/2020   22:46:42   (  -0.03,-137.09) (  -0.52,-139.23)  243.78                80
 07/13/2020   22:30:25   (  -0.03,-137.08) (   0.49,-134.65)  276.56                80
 07/15/2020   10:51:56   (   0.02,-137.05) (   0.65,-139.84)  317.91                80
 07/16/2020   10:30:19   (   0.01,-137.03) (  -0.35,-135.26)  201.67                80
 07/17/2020   22:51:59   (   0.01,-137.00) (  -0.77,-140.50)  398.87                80
 07/18/2020   22:35:42   (   0.02,-136.97) (   0.24,-135.91)  120.31                80