Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 5 14.  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)
 05/15/2025   20:27:14   (   0.01,-104.42) (  -0.27,-105.83)  160.02                80
 05/16/2025   20:11:09   (   0.01,-104.42) (   0.69,-101.30)  355.80                80
 05/18/2025   08:33:00   (  -0.01,-104.40) (   0.46,-106.58)  248.53                80
 05/19/2025   08:11:36   (  -0.01,-104.39) (  -0.56,-102.06)  266.90                80
 05/20/2025   20:33:34   (   0.00,-104.41) (  -0.63,-107.36)  336.18                80
 05/21/2025   20:17:29   (   0.00,-104.41) (   0.33,-102.82)  179.85                80
 05/23/2025   08:39:19   (  -0.00,-104.39) (   0.81,-108.11)  423.46                80
 05/24/2025   08:17:55   (  -0.00,-104.39) (  -0.16,-103.57)   92.03                80
 05/26/2025   20:23:49   (   0.00,-104.39) (  -0.00,-104.36)    3.80                80