Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2023 3 23.  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)
 03/24/2023   10:49:08   (  -0.00,-137.01) (   0.96,-141.37)  496.95                80
 03/25/2023   10:33:02   (  -0.00,-137.00) (  -0.06,-136.84)   19.54                80
 03/27/2023   22:33:31   (   0.00,-136.98) (  -0.11,-137.61)   70.62                80
 03/28/2023   22:17:25   (   0.00,-136.97) (   0.87,-133.06)  445.23                80
 03/30/2023   10:36:31   (  -0.00,-136.96) (   0.29,-138.33)  155.83                80
 03/31/2023   10:20:25   (  -0.00,-136.95) (  -0.69,-133.79)  359.70                80
 04/01/2023   22:39:39   (   0.00,-136.92) (  -0.49,-139.09)  247.16                80
 04/02/2023   22:23:33   (   0.00,-136.91) (   0.55,-134.56)  268.25                80
 04/04/2023   10:42:39   (  -0.00,-136.90) (   0.65,-139.82)  333.38                80
 04/05/2023   10:26:32   (  -0.00,-136.88) (  -0.34,-135.28)  181.78                80