Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 5 20.  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)
 05/20/2024   10:17:23   (   0.00,-137.00) (  -0.72,-133.71)  374.81                80
 05/21/2024   22:39:17   (  -0.00,-136.98) (  -0.44,-139.00)  230.07                80
 05/22/2024   22:23:11   (  -0.00,-136.97) (   0.56,-134.46)  286.30                80
 05/24/2024   10:44:56   (  -0.00,-136.96) (   0.62,-139.71)  313.85                80
 05/25/2024   10:23:30   (  -0.01,-136.95) (  -0.39,-135.17)  201.77                80
 05/26/2024   22:45:23   (   0.02,-136.91) (  -0.81,-140.46)  405.07                80
 05/27/2024   22:29:18   (   0.02,-136.89) (   0.26,-135.93)  110.30                80
 05/29/2024   10:48:22   (  -0.02,-136.87) (   0.95,-141.18)  490.95                80
 05/30/2024   10:32:15   (  -0.02,-136.85) (  -0.07,-136.64)   24.21                80
 06/01/2024   22:32:41   (   0.02,-136.78) (  -0.13,-137.37)   68.23                80
 06/02/2024   22:16:35   (   0.03,-136.76) (   0.90,-132.84)  446.68                80