Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 5 6.  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)
 05/07/2025   08:39:02   (  -0.01,-104.39) (   0.83,-108.03)  415.63                80
 05/08/2025   08:17:40   (  -0.02,-104.39) (  -0.24,-103.52)  100.65                80
 05/10/2025   20:23:33   (   0.02,-104.43) (   0.05,-104.30)   15.35                80
 05/13/2025   08:26:40   (  -0.03,-104.42) (   0.09,-105.05)   71.55                80
 05/14/2025   08:05:17   (  -0.03,-104.42) (  -0.92,-100.53)  444.51                80
 05/15/2025   20:27:14   (   0.03,-104.45) (  -0.27,-105.84)  158.05                80
 05/16/2025   20:11:11   (   0.03,-104.45) (   0.75,-101.31)  358.28                80
 05/18/2025   08:33:00   (  -0.03,-104.44) (   0.46,-106.58)  244.82                80
 05/19/2025   08:11:36   (  -0.03,-104.44) (  -0.56,-102.06)  271.25                80