Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 4 23.  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)
 04/23/2024   10:24:00   (   0.00,-137.01) (  -0.34,-135.37)  186.93                80
 04/24/2024   22:45:57   (   0.00,-137.01) (  -0.82,-140.67)  417.73                80
 04/25/2024   22:29:51   (   0.00,-137.00) (   0.17,-136.13)   98.78                80
 04/28/2024   10:30:14   (  -0.00,-136.99) (  -0.05,-136.87)   14.71                80
 04/30/2024   22:33:24   (  -0.02,-136.96) (  -0.14,-137.63)   75.88                80
 05/01/2024   22:17:18   (  -0.02,-136.94) (   0.87,-133.09)  439.77                80
 05/03/2024   10:39:05   (   0.02,-136.93) (   0.34,-138.35)  161.29                80
 05/04/2024   10:17:39   (   0.02,-136.91) (  -0.67,-133.81)  354.02                80
 05/05/2024   22:39:33   (  -0.02,-136.88) (  -0.54,-139.10)  253.03                80
 05/06/2024   22:23:28   (  -0.02,-136.86) (   0.48,-134.56)  262.01                80