Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 4 1.  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)
 04/01/2024   10:39:05   (   0.01,-137.00) (   0.31,-138.42)  161.36                80
 04/02/2024   10:17:40   (   0.01,-137.00) (  -0.68,-133.88)  355.49                80
 04/03/2024   22:39:38   (  -0.02,-137.00) (  -0.50,-139.19)  248.80                80
 04/04/2024   22:23:33   (  -0.02,-137.00) (   0.49,-134.65)  267.94                80
 04/06/2024   10:45:22   (   0.02,-137.01) (   0.69,-139.92)  331.95                80
 04/07/2024   10:23:58   (   0.01,-137.01) (  -0.36,-135.40)  184.26                80
 04/08/2024   22:48:35   (   0.01,-137.00) (  -0.80,-140.71)  421.24                80
 04/09/2024   22:29:51   (   0.03,-137.00) (   0.21,-136.17)   94.40                80
 04/12/2024   10:32:55   (  -0.02,-136.99) (  -0.04,-136.91)    9.23                80
 04/14/2024   22:33:27   (   0.02,-136.96) (  -0.15,-137.67)   81.75                80