Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 12 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)
 12/13/2024   10:41:31   (   0.00,-137.01) (   0.37,-138.54)  175.44                80
 12/14/2024   10:20:06   (   0.00,-137.00) (  -0.66,-134.01)  340.77                80
 12/15/2024   22:42:00   (  -0.01,-136.99) (  -0.53,-139.31)  263.93                80
 12/16/2024   22:25:54   (  -0.02,-136.98) (   0.45,-134.76)  252.13                80
 12/18/2024   10:47:40   (   0.02,-136.97) (   0.72,-140.03)  349.52                80
 12/19/2024   10:26:14   (   0.02,-136.96) (  -0.32,-135.50)  166.29                80
 12/20/2024   22:48:08   (  -0.03,-136.95) (  -0.90,-140.79)  438.88                80
 12/21/2024   22:32:02   (  -0.02,-136.94) (   0.15,-136.27)   76.97                80
 12/24/2024   10:35:02   (   0.03,-136.91) (   0.02,-137.00)    9.93                80