Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 11 4.  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)
 11/05/2025   22:46:05   (   0.02,-137.02) (  -0.73,-140.43)  388.52                80
 11/06/2025   22:27:19   (   0.01,-137.02) (   0.29,-135.89)  129.30                80
 11/08/2025   10:51:42   (  -0.00,-137.02) (   0.94,-141.13)  469.97                80
 11/09/2025   10:30:16   (  -0.01,-137.01) (  -0.08,-136.60)   47.06                80
 11/11/2025   22:36:04   (   0.01,-137.01) (  -0.06,-137.35)   39.14                80
 11/12/2025   22:14:37   (   0.02,-137.01) (   0.96,-132.82)  477.85                80
 11/14/2025   10:39:01   (  -0.01,-137.00) (   0.20,-138.07)  121.79                80
 11/15/2025   10:17:35   (  -0.02,-136.99) (  -0.82,-133.53)  395.06                80
 11/16/2025   22:42:08   (   0.01,-136.99) (  -0.39,-138.82)  208.26                80
 11/17/2025   22:20:42   (   0.01,-136.98) (   0.64,-134.28)  308.42                80