Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2020 2 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)
 02/29/2020   10:47:04   (   0.02,-137.21) (   0.39,-139.01)  205.04                80
 03/01/2020   10:25:27   (   0.02,-137.20) (  -0.59,-134.43)  315.97                80
 03/02/2020   22:47:07   (  -0.02,-137.19) (  -0.59,-139.66)  282.04                80
 03/03/2020   22:30:51   (  -0.02,-137.17) (   0.45,-135.08)  238.45                80
 03/05/2020   10:52:21   (   0.02,-137.16) (   0.73,-140.28)  356.03                80
 03/06/2020   10:30:46   (   0.01,-137.14) (  -0.31,-135.70)  163.82                80
 03/07/2020   22:52:25   (  -0.01,-137.11) (  -0.86,-140.93)  435.80                80
 03/08/2020   22:36:10   (  -0.01,-137.09) (   0.18,-136.36)   83.82                80
 03/11/2020   10:36:05   (   0.00,-137.04) (  -0.04,-136.98)    8.25                80