Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 5 27.  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)
 05/29/2025   08:26:55   (  -0.01,-104.44) (   0.12,-105.11)   76.31                80
 05/30/2025   08:05:31   (  -0.01,-104.46) (  -0.85,-100.58)  441.33                80
 05/31/2025   20:27:29   (   0.00,-104.50) (  -0.29,-105.90)  158.96                80
 06/01/2025   20:11:25   (   0.00,-104.52) (   0.68,-101.36)  359.40                80
 06/03/2025   08:33:14   (  -0.00,-104.54) (   0.49,-106.64)  239.52                80
 06/04/2025   08:11:50   (  -0.00,-104.56) (  -0.55,-102.12)  278.72                80
 06/05/2025   20:33:48   (   0.00,-104.61) (  -0.65,-107.42)  321.52                80
 06/06/2025   20:17:44   (   0.00,-104.63) (   0.38,-102.90)  197.12                80
 06/08/2025   08:39:33   (   0.00,-104.66) (   0.78,-108.18)  400.96                80
 06/09/2025   08:18:09   (   0.01,-104.68) (  -0.20,-103.64)  117.23                80