Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 6 11.  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)
 06/11/2024   22:46:06   (   0.01,-137.00) (  -0.79,-140.60)  409.90                80
 06/12/2024   22:30:02   (   0.01,-137.00) (   0.21,-136.07)  106.34                80
 06/14/2024   10:51:53   (  -0.01,-137.01) (   0.93,-141.35)  493.80                80
 06/15/2024   10:30:29   (  -0.01,-137.01) (  -0.07,-136.82)   22.31                80
 06/17/2024   22:33:44   (   0.02,-137.00) (  -0.11,-137.60)   68.04                80
 06/18/2024   22:17:40   (   0.02,-136.99) (   0.90,-133.07)  447.34                80
 06/20/2024   10:36:50   (  -0.02,-136.98) (   0.28,-138.34)  154.46                80
 06/21/2024   10:20:46   (  -0.02,-136.97) (  -0.74,-133.81)  360.33                80
 06/22/2024   22:40:05   (   0.03,-136.94) (  -0.44,-139.12)  247.65                80
 06/23/2024   22:24:00   (   0.03,-136.93) (   0.52,-134.58)  266.78                80