Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2024 6 28.  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)
 06/29/2024   20:27:03   (  -0.02,-104.72) (  -0.30,-105.86)  131.36                80
 06/30/2024   20:10:59   (  -0.01,-104.72) (   0.73,-101.34)  385.04                80
 07/02/2024   08:32:49   (  -0.02,-104.71) (   0.43,-106.61)  216.86                80
 07/03/2024   08:11:25   (  -0.02,-104.71) (  -0.60,-102.09)  299.40                80
 07/04/2024   20:33:23   (   0.02,-104.72) (  -0.57,-107.40)  304.56                80
 07/05/2024   20:17:20   (   0.02,-104.72) (   0.46,-102.87)  211.91                80
 07/07/2024   08:39:08   (  -0.02,-104.72) (   0.74,-108.13)  388.77                80
 07/08/2024   08:17:44   (  -0.01,-104.72) (  -0.24,-103.60)  127.93                80
 07/09/2024   20:39:42   (   0.01,-104.73) (  -0.92,-108.91)  475.41                80
 07/10/2024   20:23:38   (   0.00,-104.74) (   0.07,-104.37)   41.77                80