Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 6 27.  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)
 06/30/2025   08:27:15   (   0.01,-104.72) (   0.10,-105.20)   55.05                80
 07/01/2025   08:05:51   (   0.01,-104.72) (  -0.89,-100.67)  461.32                80
 07/02/2025   20:27:48   (  -0.01,-104.73) (  -0.31,-105.98)  142.34                80
 07/03/2025   20:11:45   (  -0.01,-104.74) (   0.74,-101.46)  374.09                80
 07/05/2025   08:33:32   (   0.00,-104.73) (   0.47,-106.72)  227.15                80
 07/06/2025   08:12:08   (  -0.00,-104.73) (  -0.59,-102.20)  288.97                80
 07/07/2025   20:34:06   (   0.01,-104.74) (  -0.61,-107.51)  315.33                80
 07/08/2025   20:18:01   (   0.01,-104.74) (   0.39,-102.97)  200.91                80
 07/10/2025   08:39:50   (  -0.00,-104.73) (   0.76,-108.25)  400.40                80
 07/11/2025   08:18:25   (  -0.00,-104.73) (  -0.25,-103.72)  115.76                80