Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 12 19.  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)
 12/20/2024   22:48:08   (  -0.02,-136.93) (  -0.88,-140.80)  440.54                80
 12/21/2024   22:32:01   (  -0.02,-136.92) (   0.10,-136.25)   75.18                80
 12/24/2024   10:35:01   (   0.02,-136.88) (   0.06,-136.98)   12.11                80
 12/26/2024   22:35:29   (  -0.02,-136.84) (  -0.21,-137.75)  103.39                80
 12/27/2024   22:19:23   (  -0.03,-136.82) (   0.79,-133.21)  411.30                80
 12/29/2024   10:41:08   (   0.03,-136.78) (   0.42,-138.47)  192.62                80
 12/30/2024   10:19:41   (   0.03,-136.75) (  -0.58,-133.93)  321.37                80
 12/31/2024   22:41:35   (  -0.04,-136.71) (  -0.60,-139.22)  286.87                80
 01/01/2025   22:25:28   (  -0.03,-136.68) (   0.41,-134.69)  226.86                80