Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 7 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/08/2022   11:14:07   (   0.05,-137.25) (   0.76,-140.51)  371.17                80
 07/09/2022   10:53:01   (   0.04,-137.26) (  -0.20,-136.04)  137.99                80
 07/10/2022   23:18:08   (  -0.04,-137.26) (  -0.97,-141.46)  478.80                80
 07/11/2022   22:57:04   (  -0.03,-137.26) (   0.04,-137.01)   29.67                80
 07/14/2022   11:03:38   (   0.02,-137.28) (   0.14,-137.93)   73.52                80
 07/15/2022   10:42:32   (   0.02,-137.28) (  -0.82,-133.46)  434.67                80
 07/16/2022   23:07:39   (  -0.03,-137.27) (  -0.42,-138.87)  183.12                80
 07/17/2022   22:46:34   (  -0.03,-137.27) (   0.60,-134.41)  325.13                80
 07/19/2022   11:11:32   (   0.03,-137.28) (   0.58,-139.79)  286.20                80
 07/20/2022   10:50:28   (   0.03,-137.28) (  -0.44,-135.34)  221.75                80
 07/21/2022   23:15:34   (  -0.02,-137.26) (  -0.80,-140.74)  396.98                80