Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2026 10 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)
 10/27/2026   10:34:24   (   0.00,-137.00) (  -0.01,-137.02)    3.03                80
 10/29/2026   22:34:55   (  -0.01,-136.98) (  -0.17,-137.79)   92.50                80
 10/30/2026   22:18:50   (  -0.02,-136.97) (   0.82,-133.26)  422.85                80
 11/01/2026   10:40:37   (   0.01,-136.94) (   0.34,-138.53)  180.84                80
 11/02/2026   10:19:12   (   0.00,-136.92) (  -0.65,-133.99)  333.91                80
 11/03/2026   22:41:08   (  -0.00,-136.91) (  -0.52,-139.30)  272.28                80
 11/04/2026   22:25:02   (  -0.00,-136.89) (   0.47,-134.76)  242.73                80
 11/06/2026   10:46:49   (   0.02,-136.86) (   0.73,-140.02)  360.43                80
 11/07/2026   10:25:23   (   0.02,-136.85) (  -0.26,-135.49)  154.24                80