Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 4 19.  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)
 04/19/2024   22:39:43   (  -0.00,-137.00) (  -0.47,-139.18)  248.47                80
 04/20/2024   22:23:39   (  -0.00,-136.99) (   0.55,-134.65)  267.97                80
 04/22/2024   10:45:26   (   0.00,-137.00) (   0.65,-139.91)  331.75                80
 04/23/2024   10:24:01   (   0.00,-136.99) (  -0.38,-135.38)  184.27                80
 04/24/2024   22:45:57   (  -0.00,-136.97) (  -0.84,-140.67)  422.02                80
 04/25/2024   22:29:52   (  -0.00,-136.96) (   0.20,-136.14)   93.49                80
 04/28/2024   10:30:14   (   0.01,-136.93) (  -0.00,-136.86)    7.31                80
 04/30/2024   22:33:24   (  -0.03,-136.87) (  -0.20,-137.62)   85.71                80
 05/01/2024   22:17:18   (  -0.03,-136.85) (   0.80,-133.08)  428.84                80