Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2023 11 24.  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) (   0.33,-138.44)  163.61                80
 11/26/2023   10:17:12   (  -0.00,-137.00) (  -0.71,-133.91)  351.90                80
 11/27/2023   22:39:09   (  -0.00,-136.98) (  -0.49,-139.22)  254.86                80
 11/28/2023   22:23:05   (  -0.01,-136.97) (   0.49,-134.68)  260.40                80
 11/30/2023   10:44:54   (   0.02,-136.96) (   0.66,-139.96)  341.44                80
 12/01/2023   10:23:30   (   0.02,-136.95) (  -0.32,-135.43)  173.49                80
 12/02/2023   22:45:27   (  -0.02,-136.92) (  -0.86,-140.74)  434.08                80
 12/03/2023   22:29:23   (  -0.02,-136.91) (   0.13,-136.20)   80.71                80
 12/06/2023   10:29:47   (   0.03,-136.88) (   0.02,-136.95)    7.41                80