Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2020 10 31.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/31/2020   22:43:21   (  -0.02,-137.21) (  -0.20,-138.05)   95.68                80
 11/01/2020   22:27:04   (  -0.02,-137.21) (   0.84,-133.47)  426.36                80
 11/03/2020   10:45:53   (   0.02,-137.20) (   0.36,-138.65)  165.60                80
 11/04/2020   10:29:36   (   0.02,-137.19) (  -0.68,-134.07)  355.78                80
 11/05/2020   22:48:35   (  -0.02,-137.17) (  -0.48,-139.30)  241.92                80
 11/06/2020   22:32:18   (  -0.02,-137.16) (   0.56,-134.72)  279.00                80
 11/08/2020   10:51:06   (   0.01,-137.14) (   0.65,-139.89)  314.49                80
 11/09/2020   10:34:50   (   0.01,-137.12) (  -0.39,-135.31)  206.01                80
 11/10/2020   22:53:48   (  -0.01,-137.09) (  -0.76,-140.54)  392.77                80
 11/11/2020   22:37:31   (  -0.01,-137.07) (   0.23,-135.95)  127.53                80
 11/13/2020   10:56:20   (   0.01,-137.04) (   0.93,-141.14)  466.84                80