Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 12 21.  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)
 12/21/2024   22:32:03   (   0.01,-137.00) (   0.20,-136.28)   83.00                80
 12/24/2024   10:32:22   (  -0.01,-136.97) (   0.02,-136.99)    3.51                80
 12/26/2024   22:35:30   (  -0.01,-136.95) (  -0.17,-137.76)   91.28                80
 12/27/2024   22:19:23   (  -0.01,-136.94) (   0.83,-133.22)  424.18                80
 12/29/2024   10:41:09   (   0.01,-136.91) (   0.37,-138.48)  179.33                80
 12/30/2024   10:19:42   (   0.01,-136.89) (  -0.64,-133.94)  335.44                80
 12/31/2024   22:41:35   (  -0.01,-136.86) (  -0.54,-139.23)  271.08                80
 01/01/2025   22:25:29   (  -0.01,-136.83) (   0.47,-134.70)  243.47                80
 01/03/2025   10:47:14   (   0.01,-136.79) (   0.72,-139.96)  360.91                80