Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 4 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/27/2022   22:37:44   (   0.02,-137.19) (   0.95,-133.01)  476.38                80
 04/29/2022   11:02:43   (  -0.02,-137.19) (   0.24,-138.39)  136.30                80
 04/30/2022   10:41:39   (  -0.02,-137.19) (  -0.73,-133.93)  371.12                80
 05/01/2022   23:06:47   (   0.02,-137.18) (  -0.49,-139.35)  247.44                80
 05/02/2022   22:45:44   (   0.02,-137.18) (   0.53,-134.90)  259.61                80
 05/04/2022   11:10:43   (  -0.02,-137.17) (   0.66,-140.28)  354.40                80
 05/05/2022   10:49:39   (  -0.02,-137.16) (  -0.31,-135.82)  152.19                80
 05/06/2022   23:14:47   (   0.01,-137.13) (  -0.89,-141.24)  467.58                80
 05/07/2022   22:53:42   (   0.01,-137.12) (   0.09,-136.78)   38.76                80
 05/10/2022   11:00:17   (  -0.01,-137.09) (   0.13,-137.70)   70.30                80