Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 4 30.  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)
 05/01/2024   22:17:19   (  -0.01,-137.00) (   0.88,-133.09)  445.88                80
 05/03/2024   10:39:05   (   0.02,-137.01) (   0.33,-138.35)  153.05                80
 05/04/2024   10:17:40   (   0.02,-137.01) (  -0.67,-133.81)  363.87                80
 05/05/2024   22:39:35   (  -0.01,-137.00) (  -0.50,-139.11)  240.88                80
 05/06/2024   22:23:30   (   0.01,-136.99) (   0.57,-134.58)  275.23                80
 05/08/2024   10:42:37   (  -0.02,-136.99) (   0.63,-139.84)  324.94                80
 05/09/2024   10:26:31   (  -0.01,-136.98) (  -0.38,-135.30)  191.15                80
 05/10/2024   22:45:46   (   0.01,-136.96) (  -0.78,-140.60)  414.84                80
 05/11/2024   22:29:40   (   0.01,-136.94) (   0.18,-136.05)  101.06                80
 05/13/2024   10:48:47   (  -0.01,-136.93) (   0.95,-141.32)  499.84                80
 05/14/2024   10:32:41   (  -0.01,-136.92) (  -0.02,-136.78)   16.01                80