Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 5 4.  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)
 05/04/2024   10:17:40   (   0.00,-137.01) (  -0.69,-133.81)  363.46                80
 05/05/2024   22:39:35   (  -0.00,-137.00) (  -0.49,-139.11)  241.04                80
 05/06/2024   22:23:30   (  -0.00,-136.99) (   0.52,-134.57)  275.57                80
 05/08/2024   10:42:37   (   0.00,-136.99) (   0.63,-139.84)  324.36                80
 05/09/2024   10:26:31   (   0.00,-136.98) (  -0.38,-135.30)  191.70                80
 05/10/2024   22:45:46   (  -0.00,-136.96) (  -0.84,-140.59)  414.27                80
 05/11/2024   22:29:40   (   0.00,-136.95) (   0.17,-136.05)  101.48                80
 05/13/2024   10:51:28   (  -0.00,-136.94) (   0.97,-141.32)  499.50                80
 05/14/2024   10:30:02   (  -0.00,-136.92) (  -0.05,-136.78)   16.12                80
 05/16/2024   22:33:11   (  -0.01,-136.88) (  -0.15,-137.54)   74.53                80
 05/17/2024   22:17:06   (  -0.01,-136.87) (   0.88,-133.00)  440.93                80