Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 6 9.  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)
 06/11/2025   20:24:01   (  -0.01,-104.41) (  -0.00,-104.41)    0.71                80
 06/14/2025   08:27:06   (   0.00,-104.40) (   0.15,-105.16)   85.61                80
 06/15/2025   08:05:42   (  -0.00,-104.40) (  -0.84,-100.62)  430.00                80
 06/16/2025   20:27:40   (   0.01,-104.40) (  -0.31,-105.94)  174.79                80
 06/17/2025   20:11:36   (   0.01,-104.41) (   0.68,-101.41)  341.52                80
 06/19/2025   08:33:24   (  -0.01,-104.41) (   0.50,-106.68)  259.28                80
 06/20/2025   08:11:59   (  -0.01,-104.40) (  -0.49,-102.15)  256.51                80
 06/21/2025   20:33:58   (   0.01,-104.40) (  -0.66,-107.46)  349.26                80
 06/22/2025   20:17:53   (   0.01,-104.40) (   0.33,-102.93)  166.78                80