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)
 11/26/2023   10:17:12   (  -0.00,-137.00) (  -0.70,-133.91)  351.74                80
 11/27/2023   22:39:09   (   0.00,-136.98) (  -0.48,-139.22)  254.83                80
 11/28/2023   22:23:05   (  -0.00,-136.97) (   0.50,-134.68)  260.42                80
 11/30/2023   10:44:53   (   0.01,-136.96) (   0.70,-139.95)  341.63                80
 12/01/2023   10:23:30   (   0.01,-136.95) (  -0.35,-135.43)  173.35                80
 12/02/2023   22:45:26   (  -0.02,-136.92) (  -0.88,-140.73)  433.95                80
 12/03/2023   22:29:21   (  -0.02,-136.91) (   0.12,-136.19)   80.93                80
 12/06/2023   10:32:25   (   0.02,-136.88) (   0.06,-136.93)    7.58                80
 12/08/2023   22:32:57   (  -0.03,-136.83) (  -0.25,-137.70)  100.57                80
 12/09/2023   22:16:53   (  -0.03,-136.80) (   0.76,-133.17)  413.64                80