Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 5 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 05/23/2025   08:39:19   (   0.00,-104.41) (   0.80,-108.11)  421.66                80
 05/24/2025   08:17:55   (  -0.00,-104.40) (  -0.16,-103.57)   94.19                80
 05/26/2025   20:23:49   (   0.00,-104.42) (  -0.00,-104.36)    7.45                80
 05/29/2025   08:26:55   (   0.00,-104.41) (   0.16,-105.11)   80.04                80
 05/30/2025   08:05:31   (   0.01,-104.40) (  -0.87,-100.59)  435.73                80
 05/31/2025   20:27:28   (  -0.01,-104.42) (  -0.32,-105.89)  167.47                80
 06/01/2025   20:11:24   (  -0.01,-104.42) (   0.65,-101.36)  349.06                80
 06/03/2025   08:33:13   (   0.01,-104.42) (   0.52,-106.63)  252.62                80
 06/04/2025   08:11:50   (   0.01,-104.42) (  -0.52,-102.11)  263.70                80