Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2024 9 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)
 09/12/2024   20:23:39   (   0.00,-104.71) (   0.12,-104.20)   57.70                80
 09/15/2024   08:26:49   (   0.00,-104.70) (   0.05,-104.96)   29.45                80
 09/16/2024   08:05:27   (   0.00,-104.70) (  -0.94,-100.43)  485.93                80
 09/17/2024   20:27:26   (  -0.01,-104.70) (  -0.27,-105.74)  118.95                80
 09/18/2024   20:11:25   (  -0.01,-104.71) (   0.80,-101.23)  396.95                80
 09/20/2024   08:33:16   (   0.01,-104.71) (   0.38,-106.51)  204.71                80
 09/21/2024   08:11:52   (   0.00,-104.71) (  -0.58,-101.97)  310.81                80
 09/22/2024   20:33:52   (  -0.00,-104.70) (  -0.59,-107.29)  294.68                80
 09/23/2024   20:17:49   (  -0.00,-104.70) (   0.44,-102.76)  221.12                80
 09/25/2024   08:39:39   (   0.01,-104.70) (   0.76,-108.04)  379.92                80