Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 4 26.  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)
 04/27/2025   22:46:17   (  -0.00,-137.00) (  -0.77,-140.51)  399.73                80
 04/28/2025   22:30:14   (  -0.00,-137.00) (   0.23,-135.99)  115.69                80
 04/30/2025   10:49:24   (  -0.00,-136.99) (   0.95,-141.27)  487.37                80
 05/01/2025   10:33:21   (  -0.00,-136.98) (  -0.05,-136.74)   27.50                80
 05/03/2025   22:33:55   (   0.01,-136.96) (  -0.09,-137.53)   64.26                80
 05/04/2025   22:17:52   (   0.02,-136.95) (   0.92,-133.00)  450.58                80
 05/06/2025   10:37:02   (  -0.02,-136.94) (   0.25,-138.29)  153.00                80
 05/07/2025   10:20:59   (  -0.02,-136.93) (  -0.76,-133.76)  361.83                80
 05/08/2025   22:40:16   (   0.02,-136.91) (  -0.43,-139.07)  244.77                80
 05/09/2025   22:24:12   (   0.02,-136.90) (   0.53,-134.53)  269.76                80