Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2024 6 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)
 06/21/2024   08:38:51   (   0.01,-104.71) (   0.77,-108.10)  386.71                80
 06/22/2024   08:17:28   (   0.01,-104.70) (  -0.24,-103.57)  129.02                80
 06/23/2024   20:39:26   (  -0.00,-104.70) (  -0.96,-108.88)  476.48                80
 06/24/2024   20:23:23   (  -0.00,-104.70) (   0.05,-104.35)   39.44                80
 06/27/2024   08:26:28   (  -0.01,-104.69) (   0.11,-105.09)   45.84                80
 06/28/2024   08:05:05   (  -0.01,-104.69) (  -0.91,-100.56)  470.20                80
 06/29/2024   20:27:03   (   0.01,-104.69) (  -0.28,-105.87)  134.90                80
 06/30/2024   20:11:00   (   0.01,-104.69) (   0.74,-101.34)  381.28                80
 07/02/2024   08:32:49   (  -0.01,-104.69) (   0.43,-106.62)  219.33                80
 07/03/2024   08:11:26   (  -0.01,-104.69) (  -0.59,-102.09)  296.49                80