Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 7 8.  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)
 07/09/2025   10:40:28   (  -0.02,-137.00) (   0.32,-138.48)  167.95                80
 07/10/2025   10:19:04   (  -0.02,-137.00) (  -0.68,-133.94)  348.08                80
 07/11/2025   22:41:02   (   0.03,-137.00) (  -0.46,-139.26)  257.39                80
 07/12/2025   22:24:58   (   0.03,-137.00) (   0.54,-134.73)  258.44                80
 07/14/2025   10:44:05   (  -0.04,-136.99) (   0.65,-140.00)  343.12                80
 07/15/2025   10:28:00   (  -0.03,-136.98) (  -0.35,-135.46)  172.48                80
 07/16/2025   22:47:19   (   0.04,-136.97) (  -0.79,-140.78)  433.87                80
 07/17/2025   22:31:14   (   0.04,-136.96) (   0.22,-136.25)   81.34                80
 07/20/2025   10:31:37   (  -0.05,-136.92) (  -0.03,-136.99)    7.21                80