Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 6 11.  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)
 06/12/2025   10:43:50   (  -0.02,-137.00) (   0.65,-139.93)  334.50                80
 06/13/2025   10:27:46   (  -0.01,-137.00) (  -0.34,-135.40)  181.53                80
 06/14/2025   22:47:04   (   0.00,-136.99) (  -0.80,-140.72)  423.73                80
 06/15/2025   22:30:59   (  -0.01,-136.99) (   0.18,-136.18)   92.01                80
 06/18/2025   10:31:23   (   0.02,-136.97) (   0.01,-136.92)    5.30                80
 06/20/2025   22:34:37   (  -0.01,-136.94) (  -0.17,-137.70)   86.47                80
 06/21/2025   22:18:33   (  -0.01,-136.93) (   0.82,-133.17)  428.09                80
 06/23/2025   10:37:41   (   0.00,-136.90) (   0.35,-138.44)  176.13                80
 06/24/2025   10:21:36   (   0.00,-136.88) (  -0.64,-133.91)  337.87                80