Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 5 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/13/2022   22:43:18   (   0.01,-137.19) (   0.69,-134.21)  339.62                80
 05/15/2022   11:08:17   (  -0.01,-137.19) (   0.51,-139.60)  273.66                80
 05/16/2022   10:47:13   (  -0.01,-137.18) (  -0.47,-135.14)  233.18                80
 05/17/2022   23:12:20   (   0.01,-137.16) (  -0.76,-140.55)  386.48                80
 05/18/2022   22:51:15   (   0.01,-137.14) (   0.22,-136.09)  119.87                80
 05/20/2022   11:16:15   (  -0.01,-137.13) (   0.98,-141.47)  495.18                80
 05/21/2022   10:55:11   (  -0.01,-137.11) (  -0.06,-137.02)   11.30                80
 05/23/2022   22:59:13   (   0.00,-137.06) (  -0.23,-137.97)  103.56                80
 05/24/2022   22:43:30   (   0.00,-137.05) (   0.82,-133.52)  402.54                80
 05/26/2022   11:05:49   (  -0.00,-137.03) (   0.39,-138.90)  212.99                80