Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 6 5.  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)
 06/06/2025   20:17:43   (   0.00,-104.41) (   0.32,-102.88)  174.23                80
 06/08/2025   08:39:32   (  -0.00,-104.41) (   0.82,-108.16)  427.61                80
 06/09/2025   08:18:08   (  -0.01,-104.41) (  -0.16,-103.63)   88.10                80
 06/11/2025   20:21:21   (   0.00,-104.41) (   0.00,-104.41)    0.71                80
 06/14/2025   08:27:06   (  -0.01,-104.40) (   0.15,-105.16)   86.47                80
 06/15/2025   08:05:42   (  -0.01,-104.39) (  -0.84,-100.63)  429.08                80
 06/16/2025   20:27:39   (   0.01,-104.39) (  -0.36,-105.93)  176.23                80
 06/17/2025   20:11:36   (   0.01,-104.39) (   0.69,-101.41)  339.98                80
 06/19/2025   08:33:24   (  -0.01,-104.39) (   0.50,-106.68)  260.56                80