Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 4 21.  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)
 04/22/2025   22:39:57   (  -0.00,-136.99) (  -0.44,-138.98)  226.34                80
 04/23/2025   22:23:51   (  -0.00,-137.00) (   0.58,-134.44)  291.27                80
 04/25/2025   10:45:36   (   0.00,-136.99) (   0.59,-139.70)  308.33                80
 04/26/2025   10:24:10   (  -0.00,-136.99) (  -0.43,-135.17)  208.86                80
 04/27/2025   22:46:02   (   0.00,-136.99) (  -0.78,-140.45)  394.24                80
 04/28/2025   22:29:56   (   0.00,-136.99) (   0.25,-135.91)  122.41                80
 04/30/2025   10:51:41   (  -0.00,-136.97) (   0.92,-141.18)  478.79                80
 05/01/2025   10:30:13   (  -0.00,-136.96) (  -0.05,-136.63)   37.45                80
 05/03/2025   22:33:19   (  -0.02,-136.93) (  -0.11,-137.38)   50.38                80
 05/04/2025   22:17:12   (  -0.03,-136.92) (   0.87,-132.83)  465.81                80