Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 6 21.  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)
 06/21/2025   20:36:38   (  -0.02,-104.74) (  -0.63,-107.47)  311.15                80
 06/22/2025   20:15:14   (  -0.01,-104.74) (   0.42,-102.95)  204.93                80
 06/24/2025   08:39:42   (   0.01,-104.73) (   0.81,-108.21)  396.81                80
 06/25/2025   08:18:18   (   0.00,-104.73) (  -0.25,-103.69)  119.10                80
 06/26/2025   20:40:16   (   0.00,-104.74) (  -0.96,-108.99)  485.05                80
 06/27/2025   20:21:32   (   0.00,-104.74) (   0.09,-104.47)   31.44                80
 06/30/2025   08:27:15   (  -0.00,-104.74) (   0.13,-105.20)   52.83                80
 07/01/2025   08:05:51   (  -0.00,-104.75) (  -0.93,-100.68)  464.01                80
 07/02/2025   20:27:49   (   0.00,-104.77) (  -0.28,-105.99)  139.15                80
 07/03/2025   20:11:44   (   0.00,-104.77) (   0.72,-101.45)  377.73                80
 07/05/2025   08:33:33   (  -0.01,-104.78) (   0.43,-106.73)  222.66                80