Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2020 2 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 02/26/2020   22:41:49   (  -0.02,-137.21) (  -0.27,-138.39)  133.77                80
 02/27/2020   22:25:32   (  -0.02,-137.21) (   0.71,-133.80)  387.70                80
 02/29/2020   10:47:03   (   0.02,-137.20) (   0.46,-139.00)  205.51                80
 03/01/2020   10:25:27   (   0.03,-137.20) (  -0.58,-134.42)  315.43                80
 03/02/2020   22:47:07   (  -0.03,-137.18) (  -0.61,-139.66)  282.39                80
 03/03/2020   22:30:51   (  -0.03,-137.17) (   0.43,-135.08)  238.04                80
 03/05/2020   10:49:41   (   0.03,-137.15) (   0.75,-140.27)  356.82                80
 03/06/2020   10:33:26   (   0.04,-137.13) (  -0.29,-135.70)  163.00                80
 03/07/2020   22:52:25   (  -0.04,-137.10) (  -0.88,-140.93)  436.39                80
 03/08/2020   22:36:10   (  -0.04,-137.08) (   0.16,-136.36)   83.21                80