Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2023 11 3.  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)
 11/04/2023   10:29:18   (   0.00,-137.00) (  -0.03,-136.84)   18.53                80
 11/06/2023   22:32:34   (  -0.00,-136.98) (  -0.13,-137.63)   72.99                80
 11/07/2023   22:16:30   (  -0.00,-136.98) (   0.88,-133.10)  442.10                80
 11/09/2023   10:38:19   (   0.00,-136.97) (   0.33,-138.37)  160.61                80
 11/10/2023   10:16:56   (   0.00,-136.96) (  -0.68,-133.85)  354.13                80
 11/11/2023   22:38:54   (  -0.01,-136.94) (  -0.51,-139.16)  253.37                80
 11/12/2023   22:22:51   (  -0.01,-136.92) (   0.50,-134.63)  261.03                80
 11/14/2023   10:44:40   (   0.02,-136.90) (   0.70,-139.90)  342.90                80
 11/15/2023   10:23:17   (   0.02,-136.87) (  -0.32,-135.38)  170.77                80
 11/16/2023   22:45:14   (  -0.03,-136.84) (  -0.91,-140.68)  438.65                80