Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 4 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)
 04/12/2024   10:30:15   (   0.00,-137.01) (  -0.01,-136.90)   11.82                80
 04/14/2024   22:33:28   (  -0.00,-136.99) (  -0.14,-137.68)   78.45                80
 04/15/2024   22:14:43   (  -0.01,-136.98) (   0.87,-133.15)  437.39                80
 04/17/2024   10:39:10   (   0.01,-136.97) (   0.36,-138.40)  163.24                80
 04/18/2024   10:17:47   (   0.01,-136.97) (  -0.71,-133.88)  352.46                80
 04/19/2024   22:42:23   (  -0.02,-136.95) (  -0.49,-139.18)  253.99                80
 04/20/2024   22:20:58   (  -0.02,-136.94) (   0.47,-134.63)  261.51                80
 04/22/2024   10:45:26   (   0.02,-136.93) (   0.70,-139.90)  339.86                80
 04/23/2024   10:24:02   (   0.02,-136.91) (  -0.32,-135.37)  175.20                80
 04/24/2024   22:48:38   (  -0.02,-136.88) (  -0.86,-140.67)  432.28                80