Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 10 16.  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)
 10/16/2025   22:24:20   (   0.01,-137.02) (   0.59,-134.55)  282.36                80
 10/18/2025   10:46:05   (  -0.02,-137.02) (   0.59,-139.81)  317.05                80
 10/19/2025   10:24:39   (  -0.01,-137.03) (  -0.41,-135.27)  200.71                80
 10/20/2025   22:46:33   (   0.02,-137.04) (  -0.78,-140.56)  400.93                80
 10/21/2025   22:30:26   (   0.02,-137.05) (   0.22,-136.02)  116.50                80
 10/23/2025   10:52:12   (  -0.02,-137.04) (   0.94,-141.28)  483.95                80
 10/24/2025   10:30:45   (  -0.02,-137.03) (  -0.06,-136.74)   32.90                80
 10/26/2025   22:33:54   (   0.03,-137.02) (  -0.05,-137.51)   54.27                80
 10/27/2025   22:17:48   (   0.03,-137.02) (   0.95,-132.97)  462.03                80
 10/29/2025   10:39:32   (  -0.03,-136.99) (   0.24,-138.22)  139.72                80
 10/30/2025   10:18:05   (  -0.04,-136.98) (  -0.77,-133.68)  376.11                80