Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2024 6 8.  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)
 06/11/2024   08:23:28   (   0.00,-104.70) (   0.10,-105.05)   39.71                80
 06/12/2024   08:07:25   (   0.01,-104.71) (  -0.90,-100.52)  476.59                80
 06/13/2024   20:26:44   (  -0.01,-104.71) (  -0.25,-105.84)  127.96                80
 06/14/2024   20:10:41   (  -0.02,-104.71) (   0.76,-101.31)  388.47                80
 06/16/2024   08:29:50   (   0.02,-104.71) (   0.44,-106.58)  212.21                80
 06/17/2024   08:13:47   (   0.02,-104.72) (  -0.57,-102.05)  304.03                80
 06/18/2024   20:33:05   (  -0.01,-104.72) (  -0.62,-107.35)  301.01                80
 06/19/2024   20:17:01   (  -0.00,-104.72) (   0.39,-102.82)  215.04                80
 06/21/2024   08:36:12   (  -0.00,-104.71) (   0.73,-108.11)  386.22                80
 06/22/2024   08:20:07   (  -0.00,-104.71) (  -0.23,-103.57)  129.68                80