Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 12 13.  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)
 12/14/2024   10:20:06   (   0.01,-137.00) (  -0.67,-134.01)  340.94                80
 12/15/2024   22:42:00   (  -0.02,-136.99) (  -0.52,-139.31)  263.91                80
 12/16/2024   22:25:54   (  -0.02,-136.98) (   0.46,-134.77)  252.06                80
 12/18/2024   10:47:40   (   0.01,-136.97) (   0.70,-140.04)  349.88                80
 12/19/2024   10:26:15   (   0.00,-136.96) (  -0.33,-135.51)  165.59                80
 12/20/2024   22:48:09   (   0.00,-136.94) (  -0.83,-140.81)  439.88                80
 12/21/2024   22:32:02   (   0.01,-136.93) (   0.15,-136.27)   75.78                80
 12/24/2024   10:35:02   (  -0.01,-136.90) (   0.02,-137.00)   10.93                80
 12/26/2024   22:35:30   (   0.00,-136.86) (  -0.17,-137.76)  101.89                80