Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 5 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 05/13/2025   08:26:40   (  -0.02,-104.40) (   0.13,-105.04)   73.08                80
 05/14/2025   08:05:16   (  -0.02,-104.40) (  -0.89,-100.52)  442.58                80
 05/15/2025   20:27:13   (   0.02,-104.43) (  -0.31,-105.83)  159.70                80
 05/16/2025   20:11:10   (   0.02,-104.43) (   0.71,-101.30)  356.33                80
 05/18/2025   08:32:59   (  -0.01,-104.41) (   0.50,-106.57)  247.52                80
 05/19/2025   08:11:36   (  -0.01,-104.40) (  -0.52,-102.05)  268.20                80
 05/20/2025   20:33:33   (   0.01,-104.42) (  -0.67,-107.36)  334.66                80
 05/21/2025   20:17:30   (   0.01,-104.43) (   0.35,-102.83)  181.58                80
 05/23/2025   08:39:19   (  -0.01,-104.41) (   0.85,-108.10)  421.29                80
 05/24/2025   08:17:55   (  -0.01,-104.41) (  -0.18,-103.58)   94.39                80