Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 8 15.  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)
 08/15/2024   22:30:52   (  -0.01,-137.00) (   0.19,-136.10)  103.20                80
 08/17/2024   10:52:39   (   0.02,-137.01) (   1.01,-141.36)  496.31                80
 08/18/2024   10:31:15   (   0.02,-137.00) (  -0.03,-136.83)   19.87                80
 08/20/2024   22:34:26   (  -0.03,-136.97) (  -0.14,-137.59)   69.89                80
 08/21/2024   22:15:40   (  -0.03,-136.97) (   0.85,-133.05)  446.13                80
 08/23/2024   10:40:07   (   0.03,-136.96) (   0.32,-138.32)  154.19                80
 08/24/2024   10:18:42   (   0.03,-136.95) (  -0.68,-133.78)  361.37                80
 08/25/2024   22:40:36   (  -0.03,-136.92) (  -0.54,-139.06)  245.38                80
 08/26/2024   22:24:32   (  -0.03,-136.90) (   0.53,-134.54)  269.89                80
 08/28/2024   10:46:18   (   0.04,-136.88) (   0.68,-139.79)  331.56                80