Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2023 2 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)
 02/04/2023   10:52:06   (  -0.01,-136.99) (   0.99,-141.32)  494.89                80
 02/05/2023   10:30:41   (  -0.01,-136.98) (  -0.03,-136.79)   21.01                80
 02/07/2023   22:33:51   (   0.01,-136.96) (  -0.11,-137.57)   69.58                80
 02/08/2023   22:17:45   (   0.01,-136.95) (   0.91,-133.04)  446.06                80
 02/10/2023   10:36:51   (  -0.01,-136.93) (   0.32,-138.29)  155.78                80
 02/11/2023   10:20:45   (  -0.01,-136.92) (  -0.71,-133.76)  359.45                80
 02/12/2023   22:40:00   (   0.01,-136.89) (  -0.44,-139.07)  248.03                80
 02/13/2023   22:23:54   (   0.01,-136.87) (   0.53,-134.53)  266.58                80
 02/15/2023   10:43:00   (  -0.02,-136.84) (   0.64,-139.80)  337.08                80
 02/16/2023   10:26:55   (  -0.02,-136.82) (  -0.39,-135.27)  176.82                80