Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 6 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/20/2022   22:43:45   (  -0.03,-137.16) (   0.68,-133.97)  363.78                80
 06/22/2022   11:08:44   (   0.04,-137.15) (   0.51,-139.35)  250.32                80
 06/23/2022   10:47:39   (   0.03,-137.15) (  -0.49,-134.90)  256.59                80
 06/24/2022   23:12:46   (  -0.03,-137.13) (  -0.72,-140.31)  361.94                80
 06/25/2022   22:51:41   (  -0.02,-137.11) (   0.28,-135.85)  144.58                80
 06/27/2022   11:16:40   (   0.02,-137.09) (   0.96,-141.22)  470.81                80
 06/28/2022   10:55:35   (   0.02,-137.08) (  -0.05,-136.77)   35.15                80
 06/30/2022   23:02:17   (  -0.01,-137.02) (  -0.15,-137.72)   79.18                80
 07/01/2022   22:41:12   (  -0.01,-137.00) (   0.86,-133.27)  426.51                80
 07/03/2022   11:06:11   (   0.01,-136.97) (   0.37,-138.64)  189.91                80