Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 6 7.  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)
 06/08/2025   08:39:37   (   0.00,-105.75) (   0.53,-108.23)  282.33                80
 06/09/2025   08:18:15   (  -0.00,-106.26) (  -0.57,-103.72)  289.98                80
 06/10/2025   20:42:55   (   0.00,-107.08) (  -0.45,-109.07)  226.42                80
 06/11/2025   20:21:33   (   0.01,-107.60) (   0.71,-104.57)  346.02                80
 06/13/2025   08:46:05   (  -0.01,-108.38) (   0.31,-109.88)  169.97                80
 06/14/2025   08:24:42   (  -0.01,-108.90) (  -0.80,-105.37)  402.17                80
 06/15/2025   20:49:23   (   0.01,-109.71) (  -0.23,-110.72)  114.66                80
 06/16/2025   20:28:01   (   0.01,-110.23) (   0.94,-106.22)  457.88                80
 06/18/2025   08:52:31   (  -0.01,-111.02) (   0.13,-111.52)   57.72                80
 06/20/2025   20:55:50   (   0.00,-112.34) (   0.02,-112.37)    3.41                80