Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 5 11.  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)
 05/11/2024   22:29:41   (   0.02,-136.99) (   0.25,-136.07)  106.42                80
 05/13/2024   10:48:47   (   0.00,-137.00) (   0.99,-141.31)  492.30                80
 05/14/2024   10:32:41   (   0.01,-136.99) (  -0.05,-136.78)   24.32                80
 05/16/2024   22:33:09   (  -0.01,-136.96) (  -0.15,-137.52)   64.70                80
 05/17/2024   22:17:03   (  -0.02,-136.95) (   0.90,-132.99)  451.70                80
 05/19/2024   10:36:09   (   0.01,-136.95) (   0.30,-138.25)  147.94                80
 05/20/2024   10:20:02   (   0.01,-136.93) (  -0.70,-133.70)  368.10                80
 05/21/2024   22:39:16   (  -0.00,-136.90) (  -0.50,-138.99)  238.62                80
 05/22/2024   22:23:10   (  -0.00,-136.88) (   0.57,-134.46)  276.93                80
 05/24/2024   10:42:14   (  -0.01,-136.86) (   0.65,-139.70)  324.32                80
 05/25/2024   10:26:08   (  -0.00,-136.84) (  -0.37,-135.16)  190.77                80