Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2020 8 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/29/2020   22:39:53   (  -0.05,-137.19) (   0.04,-136.79)   45.55                80
 09/01/2020   10:39:47   (   0.04,-137.19) (   0.09,-137.41)   24.97                80
 09/02/2020   10:23:31   (   0.04,-137.18) (  -0.93,-132.82)  496.40                80
 09/03/2020   22:42:29   (  -0.04,-137.16) (  -0.22,-138.05)  101.19                80
 09/04/2020   22:26:13   (  -0.04,-137.15) (   0.80,-133.47)  420.07                80
 09/06/2020   10:45:02   (   0.03,-137.15) (   0.40,-138.65)  172.53                80
 09/07/2020   10:28:46   (   0.04,-137.14) (  -0.68,-134.09)  348.35                80
 09/08/2020   22:47:44   (  -0.03,-137.10) (  -0.53,-139.30)  250.51                80
 09/09/2020   22:31:27   (  -0.03,-137.09) (   0.49,-134.72)  269.76                80
 09/11/2020   10:50:18   (   0.02,-137.07) (   0.65,-139.92)  324.45                80