Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2024 9 19.  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)
 09/20/2024   08:33:16   (  -0.01,-104.70) (   0.40,-106.50)  205.50                80
 09/21/2024   08:11:53   (  -0.01,-104.70) (  -0.60,-101.98)  309.87                80
 09/22/2024   20:33:54   (   0.02,-104.71) (  -0.54,-107.30)  295.11                80
 09/23/2024   20:17:51   (   0.01,-104.70) (   0.48,-102.77)  220.73                80
 09/25/2024   08:39:41   (  -0.01,-104.70) (   0.75,-108.04)  381.51                80
 09/26/2024   08:18:19   (  -0.02,-104.69) (  -0.27,-103.52)  133.80                80
 09/27/2024   20:40:18   (   0.02,-104.70) (  -0.91,-108.83)  471.29                80
 09/28/2024   20:24:16   (   0.02,-104.70) (   0.12,-104.31)   44.83                80
 10/01/2024   08:27:24   (  -0.01,-104.71) (   0.05,-105.06)   39.63                80
 10/02/2024   08:06:00   (  -0.01,-104.71) (  -0.93,-100.52)  476.61                80