Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 10 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/09/2022   11:00:51   (   0.05,-137.32) (  -0.18,-136.42)  103.09                80
 10/11/2022   23:02:09   (  -0.05,-137.30) (  -0.09,-137.35)    6.47                80
 10/14/2022   11:06:01   (   0.04,-137.28) (   0.26,-138.26)  111.25                80
 10/15/2022   10:50:15   (   0.04,-137.27) (  -0.76,-133.80)  396.15                80
 10/16/2022   23:10:00   (  -0.04,-137.25) (  -0.45,-139.20)  222.34                80
 10/17/2022   22:54:13   (  -0.04,-137.23) (   0.52,-134.73)  284.77                80
 10/19/2022   11:13:51   (   0.03,-137.21) (   0.68,-140.10)  329.80                80
 10/20/2022   10:58:04   (   0.03,-137.19) (  -0.30,-135.63)  177.05                80
 10/21/2022   23:17:48   (  -0.02,-137.16) (  -0.90,-141.03)  442.22                80
 10/22/2022   23:02:03   (  -0.02,-137.14) (   0.13,-136.58)   64.51                80