Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 12 23.  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)
 12/24/2024   10:32:22   (  -0.00,-137.01) (   0.03,-136.99)    3.40                80
 12/26/2024   22:35:30   (   0.00,-137.01) (  -0.17,-137.76)   85.64                80
 12/27/2024   22:19:23   (   0.01,-137.00) (   0.83,-133.22)  430.74                80
 12/29/2024   10:41:09   (  -0.01,-136.98) (   0.31,-138.49)  171.17                80
 12/30/2024   10:19:43   (  -0.01,-136.97) (  -0.69,-133.95)  344.62                80
 12/31/2024   22:41:36   (   0.01,-136.96) (  -0.49,-139.25)  260.37                80
 01/01/2025   22:25:30   (   0.00,-136.94) (   0.52,-134.71)  255.21                80
 01/03/2025   10:47:15   (  -0.00,-136.92) (   0.67,-139.97)  347.59                80
 01/04/2025   10:25:49   (   0.00,-136.90) (  -0.35,-135.43)  167.73                80
 01/05/2025   22:47:41   (  -0.00,-136.88) (  -0.87,-140.72)  438.04                80