Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 3 21.  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)
 03/21/2025   22:40:42   (  -0.00,-137.00) (  -0.46,-139.14)  243.67                80
 03/22/2025   22:24:36   (  -0.01,-136.99) (   0.54,-134.60)  271.98                80
 03/24/2025   10:46:22   (   0.01,-136.96) (   0.68,-139.86)  331.18                80
 03/25/2025   10:24:56   (   0.00,-136.94) (  -0.33,-135.32)  184.05                80
 03/26/2025   22:46:53   (  -0.00,-136.93) (  -0.80,-140.64)  421.36                80
 03/27/2025   22:30:46   (  -0.00,-136.92) (   0.16,-136.09)   93.80                80
 03/30/2025   10:33:46   (   0.00,-136.86) (   0.02,-136.81)    5.75                80
 04/01/2025   22:34:16   (   0.01,-136.81) (  -0.14,-137.59)   87.70                80
 04/02/2025   22:18:09   (   0.01,-136.79) (   0.84,-133.05)  426.32                80
 04/04/2025   10:39:55   (  -0.01,-136.73) (   0.35,-138.31)  179.23                80