Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 6 25.  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)
 06/25/2024   10:45:51   (  -0.01,-137.01) (   0.62,-139.86)  324.88                80
 06/26/2024   10:24:28   (  -0.01,-137.01) (  -0.40,-135.33)  191.34                80
 06/27/2024   22:46:26   (   0.01,-137.01) (  -0.79,-140.64)  413.65                80
 06/28/2024   22:30:22   (   0.01,-137.01) (   0.22,-136.11)  102.50                80
 06/30/2024   10:52:12   (  -0.01,-137.01) (   0.94,-141.38)  498.26                80
 07/01/2024   10:30:47   (  -0.01,-137.00) (  -0.02,-136.84)   17.64                80
 07/03/2024   22:34:02   (   0.02,-136.98) (  -0.14,-137.63)   73.82                80
 07/04/2024   22:17:59   (   0.02,-136.97) (   0.89,-133.10)  441.30                80
 07/06/2024   10:37:08   (  -0.02,-136.96) (   0.27,-138.37)  160.91                80
 07/07/2024   10:21:03   (  -0.02,-136.94) (  -0.70,-133.83)  354.06                80
 07/08/2024   22:40:22   (   0.02,-136.92) (  -0.46,-139.15)  253.17                80