Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 4 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)
 04/12/2024   10:30:15   (   0.00,-137.01) (  -0.04,-136.91)   11.91                80
 04/14/2024   22:33:27   (  -0.01,-136.98) (  -0.16,-137.67)   78.57                80
 04/15/2024   22:17:23   (  -0.01,-136.98) (   0.84,-133.14)  437.18                80
 04/17/2024   10:36:31   (   0.01,-136.97) (   0.33,-138.41)  163.65                80
 04/18/2024   10:20:26   (   0.01,-136.96) (  -0.68,-133.87)  351.99                80
 04/19/2024   22:39:43   (  -0.01,-136.94) (  -0.52,-139.17)  254.67                80
 04/20/2024   22:23:38   (  -0.01,-136.93) (   0.50,-134.64)  260.71                80
 04/22/2024   10:42:47   (  -0.01,-136.92) (   0.67,-139.91)  341.08                80
 04/23/2024   10:26:42   (  -0.01,-136.91) (  -0.35,-135.38)  173.81                80
 04/24/2024   22:45:58   (   0.02,-136.87) (  -0.83,-140.68)  434.10                80
 04/25/2024   22:29:54   (   0.02,-136.85) (   0.19,-136.15)   80.36                80