Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 12 9.  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)
 12/10/2024   22:35:51   (  -0.01,-137.00) (  -0.17,-137.82)   92.06                80
 12/11/2024   22:19:45   (  -0.01,-137.00) (   0.80,-133.27)  424.24                80
 12/13/2024   10:41:31   (   0.01,-136.99) (   0.37,-138.54)  177.47                80
 12/14/2024   10:20:06   (   0.01,-136.97) (  -0.67,-134.01)  338.21                80
 12/15/2024   22:42:00   (  -0.01,-136.96) (  -0.51,-139.31)  267.39                80
 12/16/2024   22:25:54   (  -0.02,-136.95) (   0.47,-134.77)  248.15                80
 12/18/2024   10:47:40   (   0.02,-136.92) (   0.69,-140.04)  354.33                80
 12/19/2024   10:26:13   (   0.01,-136.91) (  -0.30,-135.50)  160.83                80
 12/20/2024   22:48:08   (  -0.00,-136.89) (  -0.85,-140.80)  445.24                80
 12/21/2024   22:32:01   (   0.00,-136.88) (   0.14,-136.26)   70.01                80