Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 1 14.  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)
 01/14/2024   22:39:10   (   0.00,-136.99) (  -0.47,-139.19)  250.18                80
 01/15/2024   22:23:04   (   0.00,-136.98) (   0.53,-134.65)  266.29                80
 01/17/2024   10:42:10   (  -0.00,-136.99) (   0.68,-139.91)  333.39                80
 01/18/2024   10:26:06   (  -0.00,-136.98) (  -0.39,-135.38)  182.78                80
 01/19/2024   22:45:20   (   0.01,-136.96) (  -0.85,-140.67)  423.40                80
 01/20/2024   22:29:15   (   0.01,-136.95) (   0.16,-136.13)   92.31                80
 01/23/2024   10:32:17   (  -0.02,-136.92) (  -0.05,-136.87)    6.82                80
 01/25/2024   22:32:45   (   0.02,-136.88) (  -0.15,-137.62)   85.34                80
 01/26/2024   22:16:40   (   0.02,-136.86) (   0.87,-133.09)  429.86                80