Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 4 6.  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)
 04/07/2024   10:23:58   (   0.00,-137.00) (  -0.35,-135.39)  182.54                80
 04/08/2024   22:45:55   (  -0.00,-136.99) (  -0.82,-140.70)  422.55                80
 04/09/2024   22:29:51   (   0.00,-136.99) (   0.18,-136.17)   93.34                80
 04/12/2024   10:30:16   (  -0.02,-136.97) (  -0.05,-136.91)    7.48                80
 04/14/2024   22:33:27   (   0.02,-136.94) (  -0.16,-137.67)   84.28                80
 04/15/2024   22:17:23   (   0.02,-136.93) (   0.84,-133.14)  430.87                80
 04/17/2024   10:36:31   (  -0.02,-136.91) (   0.34,-138.41)  171.50                80
 04/18/2024   10:20:28   (  -0.02,-136.90) (  -0.72,-133.89)  343.48                80
 04/19/2024   22:39:44   (   0.02,-136.87) (  -0.48,-139.19)  263.52                80