Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 4 25.  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)
 04/26/2025   10:24:19   (  -0.00,-137.00) (  -0.40,-135.20)  205.36                80
 04/27/2025   22:46:17   (   0.00,-137.00) (  -0.77,-140.51)  399.79                80
 04/28/2025   22:30:14   (   0.00,-137.00) (   0.23,-135.99)  115.54                80
 04/30/2025   10:52:04   (  -0.00,-136.99) (   0.95,-141.27)  487.66                80
 05/01/2025   10:30:41   (  -0.00,-136.98) (  -0.05,-136.74)   27.18                80
 05/03/2025   22:33:54   (  -0.02,-136.96) (  -0.14,-137.52)   63.96                80
 05/04/2025   22:17:51   (  -0.02,-136.95) (   0.87,-132.99)  450.94                80
 05/06/2025   10:37:01   (   0.02,-136.93) (   0.30,-138.27)  152.64                80
 05/07/2025   10:20:57   (   0.03,-136.92) (  -0.66,-133.74)  362.17                80
 05/08/2025   22:40:14   (  -0.03,-136.90) (  -0.52,-139.05)  244.41                80