Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 10 30.  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)
 10/31/2025   22:42:39   (   0.02,-137.00) (  -0.45,-138.96)  223.34                80
 11/01/2025   22:21:14   (   0.02,-137.01) (   0.63,-134.43)  294.09                80
 11/03/2025   10:45:38   (  -0.02,-137.00) (   0.55,-139.68)  305.22                80
 11/04/2025   10:24:11   (  -0.01,-137.00) (  -0.40,-135.13)  211.86                80
 11/05/2025   22:48:45   (  -0.01,-136.99) (  -0.77,-140.43)  391.70                80
 11/06/2025   22:27:18   (  -0.01,-136.98) (   0.25,-135.89)  124.66                80
 11/08/2025   10:51:42   (   0.01,-136.96) (   0.97,-141.13)  476.30                80
 11/09/2025   10:30:15   (   0.01,-136.94) (  -0.05,-136.59)   39.51                80
 11/11/2025   22:36:03   (  -0.00,-136.91) (  -0.08,-137.35)   50.11                80
 11/12/2025   22:14:37   (   0.00,-136.89) (   0.94,-132.81)  465.67                80