Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2020 3 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/22/2020   10:27:45   (  -0.00,-137.21) (  -0.49,-134.94)  258.24                80
 03/23/2020   22:49:24   (   0.00,-137.22) (  -0.66,-140.18)  337.55                80
 03/24/2020   22:33:09   (   0.00,-137.22) (   0.39,-135.61)  184.45                80
 03/26/2020   10:54:39   (  -0.01,-137.22) (   0.81,-140.80)  407.52                80
 03/27/2020   10:33:03   (  -0.01,-137.22) (  -0.23,-136.22)  113.84                80
 03/28/2020   22:54:42   (   0.01,-137.21) (  -0.96,-141.45)  483.46                80
 03/29/2020   22:38:26   (   0.02,-137.20) (   0.09,-136.87)   37.57                80
 04/01/2020   10:41:01   (  -0.02,-137.18) (   0.07,-137.49)   35.44                80
 04/02/2020   10:19:26   (  -0.01,-137.17) (  -0.98,-132.92)  484.83                80
 04/03/2020   22:41:04   (   0.01,-137.14) (  -0.20,-138.14)  114.06                80
 04/04/2020   22:24:47   (   0.00,-137.12) (   0.79,-133.56)  406.02                80