Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 6 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 06/14/2025   08:27:07   (  -0.00,-104.76) (   0.11,-105.17)   46.78                80
 06/15/2025   08:05:43   (  -0.01,-104.77) (  -0.94,-100.65)  470.18                80
 06/16/2025   20:27:41   (   0.00,-104.79) (  -0.26,-105.95)  132.84                80
 06/17/2025   20:11:37   (   0.00,-104.80) (   0.78,-101.43)  384.48                80
 06/19/2025   08:33:26   (  -0.00,-104.81) (   0.40,-106.70)  214.64                80
 06/20/2025   08:12:01   (  -0.00,-104.82) (  -0.59,-102.17)  302.38                80
 06/21/2025   20:33:58   (   0.00,-104.84) (  -0.61,-107.47)  301.36                80
 06/22/2025   20:17:55   (   0.01,-104.84) (   0.44,-102.95)  215.62                80
 06/24/2025   08:39:43   (  -0.00,-104.86) (   0.73,-108.23)  383.70                80
 06/25/2025   08:18:19   (  -0.00,-104.86) (  -0.26,-103.69)  133.10                80