Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 6 19.  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)
 06/20/2025   08:12:00   (   0.01,-104.73) (  -0.56,-102.16)  292.71                80
 06/21/2025   20:36:38   (  -0.01,-104.74) (  -0.64,-107.46)  311.53                80
 06/22/2025   20:15:14   (  -0.01,-104.74) (   0.41,-102.94)  204.38                80
 06/24/2025   08:39:42   (   0.00,-104.73) (   0.76,-108.22)  397.41                80
 06/25/2025   08:18:18   (  -0.00,-104.72) (  -0.24,-103.69)  118.32                80
 06/26/2025   20:40:15   (   0.01,-104.73) (  -0.97,-108.99)  486.35                80
 06/27/2025   20:24:12   (   0.01,-104.73) (   0.09,-104.47)   29.91                80
 06/30/2025   08:27:16   (  -0.01,-104.73) (   0.07,-105.21)   54.49                80
 07/01/2025   08:05:51   (  -0.01,-104.73) (  -0.92,-100.68)  462.16                80
 07/02/2025   20:27:49   (   0.01,-104.75) (  -0.28,-105.99)  141.50                80
 07/03/2025   20:11:44   (   0.01,-104.75) (   0.72,-101.45)  375.26                80