Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 6 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/17/2022   11:00:47   (   0.02,-137.19) (   0.10,-137.48)   33.35                80
 06/18/2022   10:39:43   (   0.01,-137.19) (  -0.90,-133.02)  474.19                80
 06/19/2022   23:04:49   (  -0.02,-137.18) (  -0.32,-138.43)  143.48                80
 06/20/2022   22:43:45   (  -0.02,-137.17) (   0.69,-133.98)  364.09                80
 06/22/2022   11:08:44   (   0.02,-137.17) (   0.50,-139.36)  249.10                80
 06/23/2022   10:47:40   (   0.02,-137.16) (  -0.50,-134.90)  258.11                80
 06/24/2022   23:12:46   (  -0.02,-137.15) (  -0.71,-140.31)  360.56                80
 06/25/2022   22:51:41   (  -0.01,-137.14) (   0.29,-135.86)  146.25                80
 06/27/2022   11:16:40   (   0.01,-137.12) (   0.95,-141.23)  468.22                80
 06/28/2022   10:55:35   (  -0.00,-137.11) (  -0.06,-136.77)   38.11                80