Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2026 3 10.  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)
 03/11/2026   10:47:37   (   0.03,-137.00) (   0.65,-139.89)  329.23                80
 03/12/2026   10:26:11   (   0.03,-136.99) (  -0.32,-135.35)  187.25                80
 03/13/2026   22:48:08   (  -0.03,-137.00) (  -0.88,-140.65)  416.20                80
 03/14/2026   22:32:03   (  -0.03,-136.99) (   0.17,-136.12)  100.05                80
 03/17/2026   10:32:25   (   0.03,-136.96) (  -0.01,-136.84)   14.24                80
 03/19/2026   22:35:36   (  -0.03,-136.95) (  -0.19,-137.60)   74.74                80
 03/20/2026   22:19:32   (  -0.03,-136.93) (   0.86,-133.07)  440.71                80
 03/22/2026   10:41:18   (   0.03,-136.90) (   0.33,-138.33)  162.70                80
 03/23/2026   10:22:32   (   0.04,-136.88) (  -0.66,-133.79)  352.00                80