Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 6 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/01/2023   13:14:25   (  -0.25,-167.51) (  -0.33,-167.14)   42.57                80
 07/04/2023   01:20:02   (   0.27,-168.44) (   0.31,-168.14)   32.96                 7
 07/06/2023   13:25:18   (  -0.29,-169.36) (  -0.34,-169.12)   26.66                80
 07/09/2023   01:29:28   (   0.30,-170.27) (   0.34,-170.13)   15.83                80
 07/11/2023   13:30:50   (  -0.31,-171.18) (  -0.32,-171.10)    8.97                80