Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 9 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/23/2022   10:55:43   (   0.05,-137.33) (  -0.40,-135.34)  226.92                80
 09/24/2022   23:15:28   (  -0.04,-137.33) (  -0.82,-140.74)  389.29                80
 09/25/2022   22:59:43   (  -0.04,-137.33) (   0.18,-136.28)  119.18                80
 09/27/2022   11:19:20   (   0.04,-137.32) (   1.02,-141.65)  493.60                80
 09/28/2022   11:03:35   (   0.04,-137.32) (   0.02,-137.19)   14.39                80
 09/30/2022   23:04:54   (  -0.04,-137.29) (  -0.21,-138.13)   95.96                80
 10/01/2022   22:49:09   (  -0.04,-137.27) (   0.79,-133.67)  411.04                80
 10/03/2022   11:08:46   (   0.03,-137.25) (   0.42,-139.04)  204.21                80
 10/04/2022   10:53:01   (   0.03,-137.23) (  -0.59,-134.58)  302.27                80
 10/05/2022   23:12:45   (  -0.02,-137.20) (  -0.65,-139.98)  317.05                80