Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 3 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/25/2022   22:47:28   (   0.04,-137.18) (   0.54,-134.99)  249.97                80
 03/27/2022   11:09:47   (  -0.03,-137.16) (   0.70,-140.37)  365.73                80
 03/28/2022   10:48:44   (  -0.02,-137.15) (  -0.29,-135.92)  140.61                80
 03/29/2022   23:11:13   (   0.02,-137.14) (  -0.93,-141.34)  478.48                80
 03/30/2022   22:55:29   (   0.02,-137.13) (   0.06,-136.88)   27.83                80
 04/02/2022   10:59:25   (  -0.02,-137.10) (   0.17,-137.81)   82.18                80
 04/03/2022   10:38:23   (  -0.02,-137.08) (  -0.88,-133.37)  423.66                80
 04/04/2022   23:00:51   (   0.02,-137.06) (  -0.39,-138.78)  196.66                80
 04/05/2022   22:45:08   (   0.02,-137.04) (   0.60,-134.33)  308.85                80
 04/07/2022   11:07:27   (  -0.01,-137.01) (   0.62,-139.71)  308.45                80