Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 5 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/12/2022   23:04:22   (   0.01,-137.19) (  -0.30,-138.67)  168.01                80
 05/13/2022   22:43:18   (   0.01,-137.19) (   0.67,-134.21)  339.47                80
 05/15/2022   11:08:17   (  -0.01,-137.19) (   0.53,-139.59)  273.83                80
 05/16/2022   10:47:12   (  -0.01,-137.18) (  -0.45,-135.13)  232.95                80
 05/17/2022   23:12:20   (   0.01,-137.16) (  -0.78,-140.54)  386.89                80
 05/18/2022   22:51:16   (   0.01,-137.14) (   0.26,-136.10)  119.37                80
 05/20/2022   11:16:16   (  -0.01,-137.12) (   0.95,-141.48)  495.72                80
 05/21/2022   10:55:11   (  -0.01,-137.11) (  -0.03,-137.02)   10.25                80
 05/23/2022   22:59:14   (   0.00,-137.06) (  -0.20,-137.97)  104.34                80
 05/24/2022   22:43:29   (   0.00,-137.04) (   0.78,-133.51)  401.64                80