Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 6 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/30/2022   23:02:17   (  -0.04,-137.19) (  -0.15,-137.72)   59.63                80
 07/01/2022   22:41:12   (  -0.03,-137.19) (   0.86,-133.26)  447.64                80
 07/03/2022   11:06:11   (   0.04,-137.18) (   0.36,-138.64)  166.47                80
 07/04/2022   10:45:06   (   0.03,-137.17) (  -0.65,-134.18)  340.63                80
 07/05/2022   23:10:13   (  -0.04,-137.15) (  -0.58,-139.59)  277.45                80
 07/06/2022   22:49:08   (  -0.04,-137.14) (   0.44,-135.13)  229.30                80
 07/08/2022   11:14:06   (   0.04,-137.12) (   0.78,-140.51)  386.01                80
 07/09/2022   10:53:02   (   0.03,-137.10) (  -0.23,-136.05)  120.13                80
 07/11/2022   22:57:04   (  -0.02,-137.05) (   0.02,-137.01)    6.25                80