Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 5 9.  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)
 05/10/2024   22:48:26   (   0.00,-137.00) (  -0.80,-140.60)  409.62                80
 05/11/2024   22:27:01   (   0.00,-137.00) (   0.22,-136.06)  106.86                80
 05/13/2024   10:48:47   (  -0.01,-137.00) (   0.97,-141.32)  492.32                80
 05/14/2024   10:32:42   (  -0.01,-136.99) (  -0.05,-136.78)   24.10                80
 05/16/2024   22:35:51   (   0.01,-136.97) (  -0.12,-137.54)   65.04                80
 05/17/2024   22:14:25   (   0.01,-136.96) (   0.90,-133.00)  451.22                80
 05/19/2024   10:36:11   (  -0.01,-136.96) (   0.27,-138.26)  148.49                80
 05/20/2024   10:20:05   (  -0.01,-136.95) (  -0.71,-133.72)  367.43                80
 05/21/2024   22:41:59   (   0.02,-136.91) (  -0.47,-139.01)  239.23                80
 05/22/2024   22:23:14   (   0.02,-136.90) (   0.57,-134.47)  276.10                80