Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 6 30.  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)
 06/30/2024   10:52:11   (   0.00,-137.00) (   0.97,-141.38)  498.24                80
 07/01/2024   10:30:48   (   0.00,-137.00) (  -0.06,-136.85)   17.77                80
 07/03/2024   22:34:01   (  -0.01,-136.98) (  -0.15,-137.62)   72.36                80
 07/04/2024   22:17:57   (  -0.02,-136.97) (   0.82,-133.08)  442.97                80
 07/06/2024   10:39:46   (   0.02,-136.95) (   0.32,-138.36)  159.57                80
 07/07/2024   10:18:22   (   0.03,-136.94) (  -0.66,-133.82)  355.52                80
 07/08/2024   22:40:20   (  -0.03,-136.93) (  -0.50,-139.13)  250.70                80
 07/09/2024   22:24:16   (  -0.03,-136.92) (   0.49,-134.60)  264.36                80
 07/11/2024   10:46:04   (   0.03,-136.89) (   0.70,-139.86)  338.43                80
 07/12/2024   10:24:39   (   0.03,-136.88) (  -0.28,-135.32)  176.38                80
 07/13/2024   22:46:37   (  -0.04,-136.86) (  -0.91,-140.63)  430.52                80