Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 5 9.  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)
 05/09/2025   22:24:12   (  -0.00,-137.00) (   0.53,-134.53)  281.32                80
 05/11/2025   10:46:02   (   0.00,-136.99) (   0.63,-139.81)  321.21                80
 05/12/2025   10:24:39   (   0.00,-136.99) (  -0.38,-135.29)  194.08                80
 05/13/2025   22:46:36   (  -0.00,-136.98) (  -0.82,-140.59)  411.98                80
 05/14/2025   22:30:33   (   0.00,-136.97) (   0.20,-136.07)  102.71                80
 05/17/2025   10:30:59   (  -0.01,-136.93) (  -0.01,-136.81)   13.13                80
 05/19/2025   22:34:12   (   0.02,-136.89) (  -0.16,-137.60)   80.82                80
 05/20/2025   22:18:09   (   0.02,-136.87) (   0.86,-133.07)  433.16                80
 05/22/2025   10:37:18   (  -0.02,-136.84) (   0.34,-138.35)  171.94                80
 05/23/2025   10:21:15   (  -0.02,-136.82) (  -0.69,-133.82)  341.65                80