Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 5 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/20/2022   11:16:15   (  -0.00,-137.19) (   0.97,-141.47)  488.50                80
 05/21/2022   10:55:11   (  -0.01,-137.18) (  -0.02,-137.01)   18.73                80
 05/23/2022   23:01:54   (   0.00,-137.16) (  -0.15,-137.98)   92.95                80
 05/24/2022   22:40:50   (   0.00,-137.15) (   0.83,-133.52)  414.17                80
 05/26/2022   11:05:49   (   0.00,-137.14) (   0.37,-138.90)  200.02                80
 05/27/2022   10:44:45   (  -0.00,-137.13) (  -0.61,-134.44)  306.68                80
 05/28/2022   23:07:11   (   0.00,-137.11) (  -0.64,-139.85)  312.66                80
 05/29/2022   22:51:28   (   0.01,-137.09) (   0.41,-135.40)  193.72                80
 05/31/2022   11:13:47   (  -0.00,-137.08) (   0.80,-140.78)  421.77                80
 06/01/2022   10:52:42   (  -0.01,-137.06) (  -0.19,-136.32)   84.12                80