Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 1 28.  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)
 01/28/2025   22:15:25   (  -0.02,-137.01) (   0.90,-132.96)  461.96                80
 01/30/2025   10:39:48   (   0.02,-137.00) (   0.27,-138.21)  137.71                80
 01/31/2025   10:18:20   (   0.02,-137.00) (  -0.70,-133.66)  379.86                80
 02/01/2025   22:42:51   (  -0.03,-137.00) (  -0.49,-138.94)  222.00                80
 02/02/2025   22:21:24   (  -0.03,-137.00) (   0.55,-134.41)  295.30                80
 02/04/2025   10:45:47   (   0.03,-136.98) (   0.60,-139.66)  305.16                80
 02/05/2025   10:24:19   (   0.03,-136.97) (  -0.38,-135.11)  211.63                80
 02/06/2025   22:46:10   (  -0.04,-136.96) (  -0.79,-140.40)  391.65                80
 02/07/2025   22:27:21   (  -0.04,-136.95) (   0.20,-135.85)  124.75                80
 02/09/2025   10:51:44   (   0.05,-136.92) (   0.99,-141.10)  476.79                80
 02/10/2025   10:30:15   (   0.05,-136.90) (  -0.01,-136.55)   39.47                80