Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 6 12.  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)
 06/12/2024   22:30:03   (   0.01,-137.00) (   0.23,-136.07)  106.39                80
 06/14/2024   10:49:12   (   0.01,-137.01) (   0.96,-141.34)  493.33                80
 06/15/2024   10:33:09   (   0.02,-137.01) (  -0.04,-136.81)   22.84                80
 06/17/2024   22:33:44   (   0.02,-137.00) (  -0.10,-137.60)   68.40                80
 06/18/2024   22:17:41   (   0.02,-136.99) (   0.91,-133.07)  447.01                80
 06/20/2024   10:36:50   (  -0.02,-136.98) (   0.27,-138.34)  154.75                80
 06/21/2024   10:20:47   (  -0.02,-136.97) (  -0.75,-133.81)  360.02                80
 06/22/2024   22:40:05   (   0.02,-136.94) (  -0.44,-139.12)  247.98                80
 06/23/2024   22:24:01   (   0.01,-136.92) (   0.52,-134.58)  266.51                80
 06/25/2024   10:43:10   (  -0.00,-136.90) (   0.65,-139.85)  336.38                80