Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 8 7.  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)
 08/07/2025   22:34:51   (   0.02,-137.00) (  -0.15,-137.77)   87.12                80
 08/08/2025   22:18:47   (   0.02,-137.00) (   0.88,-133.24)  429.20                80
 08/10/2025   10:40:34   (  -0.02,-136.99) (   0.33,-138.50)  171.96                80
 08/11/2025   10:19:10   (  -0.02,-136.99) (  -0.69,-133.97)  344.10                80
 08/12/2025   22:41:06   (   0.02,-136.99) (  -0.49,-139.28)  260.85                80
 08/13/2025   22:25:02   (   0.02,-136.98) (   0.54,-134.75)  254.83                80
 08/15/2025   10:46:49   (  -0.02,-136.96) (   0.68,-140.01)  347.70                80
 08/16/2025   10:25:24   (  -0.02,-136.95) (  -0.35,-135.48)  167.23                80
 08/17/2025   22:47:21   (   0.03,-136.93) (  -0.82,-140.79)  439.55                80
 08/18/2025   22:31:15   (   0.03,-136.91) (   0.15,-136.25)   75.03                80
 08/21/2025   10:34:19   (  -0.03,-136.86) (  -0.02,-136.99)   14.60                80