Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 4 10.  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)
 04/12/2024   10:30:15   (   0.00,-137.01) (  -0.01,-136.90)   11.93                80
 04/14/2024   22:36:08   (  -0.01,-136.99) (  -0.14,-137.68)   77.96                80
 04/15/2024   22:17:23   (  -0.02,-136.98) (   0.87,-133.15)  438.02                80
 04/17/2024   10:39:10   (   0.02,-136.98) (   0.36,-138.40)  162.59                80
 04/18/2024   10:17:46   (   0.02,-136.97) (  -0.65,-133.87)  353.15                80
 04/19/2024   22:39:42   (  -0.03,-136.95) (  -0.55,-139.17)  253.16                80
 04/20/2024   22:23:38   (  -0.03,-136.94) (   0.47,-134.63)  262.40                80
 04/22/2024   10:42:46   (   0.03,-136.93) (   0.70,-139.90)  338.90                80
 04/23/2024   10:26:42   (   0.03,-136.92) (  -0.31,-135.37)  176.26                80