Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2023 11 25.  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)
 11/25/2023   10:38:36   (  -0.00,-137.00) (   0.32,-138.44)  163.64                80
 11/26/2023   10:17:12   (  -0.00,-137.00) (  -0.72,-133.91)  351.86                80
 11/27/2023   22:39:10   (  -0.00,-136.98) (  -0.48,-139.22)  254.91                80
 11/28/2023   22:23:05   (  -0.01,-136.97) (   0.50,-134.68)  260.36                80
 11/30/2023   10:44:53   (   0.02,-136.96) (   0.71,-139.95)  341.49                80
 12/01/2023   10:23:30   (   0.02,-136.95) (  -0.34,-135.43)  173.45                80
 12/02/2023   22:45:26   (  -0.02,-136.92) (  -0.90,-140.72)  434.11                80
 12/03/2023   22:29:23   (  -0.02,-136.91) (   0.15,-136.20)   80.71                80
 12/06/2023   10:32:27   (   0.03,-136.88) (   0.05,-136.94)    7.22                80
 12/08/2023   22:32:59   (  -0.03,-136.83) (  -0.21,-137.72)  101.03                80