Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2020 11 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/08/2020   10:51:07   (   0.02,-137.23) (   0.59,-139.90)  303.58                80
 11/09/2020   10:34:51   (   0.02,-137.24) (  -0.44,-135.32)  219.01                80
 11/10/2020   22:53:48   (  -0.01,-137.24) (  -0.77,-140.53)  376.35                80
 11/11/2020   22:37:32   (  -0.01,-137.24) (   0.27,-135.95)  146.02                80
 11/13/2020   10:56:21   (   0.01,-137.23) (   0.88,-141.14)  445.57                80
 11/14/2020   10:40:05   (   0.01,-137.23) (  -0.16,-136.56)   76.34                80
 11/16/2020   22:42:45   (  -0.01,-137.21) (   0.00,-137.20)    1.79                80
 11/19/2020   10:42:37   (   0.01,-137.18) (   0.18,-137.80)   71.03                80
 11/20/2020   10:26:21   (   0.01,-137.17) (  -0.86,-133.22)  449.91                80