Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 6 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-18)   GOES-18 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 06/27/2024   22:46:26   (   0.00,-137.01) (  -0.79,-140.64)  413.34                80
 06/28/2024   22:30:22   (   0.00,-137.01) (   0.23,-136.11)  102.87                80
 06/30/2024   10:52:11   (  -0.00,-137.01) (   0.99,-141.37)  498.11                80
 07/01/2024   10:30:47   (   0.00,-137.00) (  -0.03,-136.85)   17.60                80
 07/03/2024   22:34:02   (  -0.01,-136.98) (  -0.12,-137.63)   73.01                80
 07/04/2024   22:17:58   (  -0.01,-136.97) (   0.85,-133.09)  442.26                80
 07/06/2024   10:39:47   (   0.01,-136.95) (   0.30,-138.36)  160.15                80
 07/07/2024   10:18:22   (   0.01,-136.94) (  -0.67,-133.83)  354.79                80
 07/08/2024   22:40:21   (  -0.01,-136.92) (  -0.49,-139.14)  252.05                80
 07/09/2024   22:24:16   (  -0.01,-136.91) (   0.48,-134.60)  262.89                80