Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 4 15.  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)
 04/15/2024   22:17:23   (  -0.00,-136.99) (   0.87,-133.14)  439.01                80
 04/17/2024   10:39:11   (   0.00,-137.01) (   0.30,-138.41)  159.66                80
 04/18/2024   10:17:47   (   0.00,-137.01) (  -0.71,-133.88)  356.97                80
 04/19/2024   22:42:23   (  -0.00,-137.00) (  -0.48,-139.18)  248.51                80
 04/20/2024   22:20:59   (  -0.00,-137.00) (   0.54,-134.65)  267.97                80
 04/22/2024   10:45:26   (   0.00,-137.01) (   0.67,-139.91)  331.29                80
 04/23/2024   10:24:01   (   0.00,-137.00) (  -0.35,-135.38)  184.80                80
 04/24/2024   22:48:38   (  -0.00,-136.98) (  -0.82,-140.68)  421.76                80
 04/25/2024   22:27:13   (   0.00,-136.97) (   0.21,-136.15)   93.80                80
 04/28/2024   10:32:55   (   0.02,-136.94) (   0.02,-136.87)    8.36                80