Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 6 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/25/2023   13:27:14   (  -0.23,-165.24) (   0.75,-169.59)  496.38                80
 06/26/2023   13:08:52   (  -0.21,-165.62) (  -0.32,-165.16)   52.96                80
 06/29/2023   01:10:32   (   0.22,-166.57) (   0.29,-166.16)   46.79                70
 07/01/2023   13:14:25   (  -0.25,-167.52) (  -0.31,-167.14)   42.63                80
 07/04/2023   01:18:35   (   0.27,-168.44) (   0.31,-168.14)   32.92                80
 07/06/2023   13:25:18   (  -0.29,-169.36) (  -0.34,-169.12)   26.54                80