Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 5 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)
 05/16/2024   22:35:50   (   0.00,-137.00) (  -0.13,-137.53)   61.17                80
 05/17/2024   22:17:04   (   0.00,-137.00) (   0.92,-133.00)  456.01                80
 05/19/2024   10:38:49   (  -0.00,-137.00) (   0.29,-138.25)  142.19                80
 05/20/2024   10:17:24   (  -0.00,-137.00) (  -0.76,-133.72)  374.67                80
 05/21/2024   22:39:17   (  -0.00,-136.98) (  -0.46,-139.00)  230.53                80
 05/22/2024   22:23:11   (  -0.00,-136.97) (   0.53,-134.46)  285.92                80
 05/24/2024   10:42:16   (   0.01,-136.96) (   0.65,-139.71)  313.67                80
 05/25/2024   10:26:10   (   0.02,-136.95) (  -0.36,-135.17)  202.22                80
 05/26/2024   22:45:23   (  -0.02,-136.91) (  -0.84,-140.45)  404.66                80
 05/27/2024   22:29:16   (  -0.02,-136.89) (   0.17,-135.91)  110.77                80
 05/29/2024   10:48:22   (   0.02,-136.87) (   0.99,-141.17)  490.16                80