Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 9 14.  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)
 09/15/2024   22:46:46   (   0.01,-136.99) (  -0.77,-140.50)  400.37                80
 09/16/2024   22:30:44   (   0.01,-136.99) (   0.22,-135.98)  114.80                80
 09/18/2024   10:49:55   (  -0.00,-136.98) (   0.97,-141.25)  487.74                80
 09/19/2024   10:33:53   (  -0.00,-136.97) (  -0.04,-136.73)   27.26                80
 09/21/2024   22:34:29   (   0.01,-136.94) (  -0.14,-137.51)   65.37                80
 09/22/2024   22:18:27   (   0.01,-136.93) (   0.88,-132.99)  448.84                80
 09/24/2024   10:37:38   (  -0.02,-136.91) (   0.27,-138.27)  155.31                80
 09/25/2024   10:21:35   (  -0.02,-136.89) (  -0.70,-133.74)  358.64                80
 09/26/2024   22:40:54   (   0.02,-136.86) (  -0.45,-139.05)  249.48                80
 09/27/2024   22:24:51   (   0.02,-136.84) (   0.53,-134.52)  264.46                80