Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 4 9.  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)
 04/11/2025   08:26:36   (  -0.02,-104.38) (   0.12,-105.01)   72.75                80
 04/12/2025   08:05:09   (  -0.03,-104.38) (  -0.87,-100.47)  444.11                80
 04/13/2025   20:27:04   (   0.02,-104.40) (  -0.29,-105.77)  156.19                80
 04/14/2025   20:10:57   (   0.03,-104.40) (   0.71,-101.23)  360.86                80
 04/16/2025   08:32:42   (  -0.02,-104.38) (   0.47,-106.49)  241.84                80
 04/17/2025   08:11:16   (  -0.02,-104.37) (  -0.54,-101.95)  274.82                80
 04/18/2025   20:33:10   (   0.02,-104.39) (  -0.60,-107.26)  326.21                80
 04/19/2025   20:17:04   (   0.02,-104.39) (   0.42,-102.72)  190.72                80
 04/21/2025   08:38:48   (  -0.01,-104.36) (   0.82,-107.97)  411.77                80
 04/22/2025   08:17:22   (  -0.01,-104.35) (  -0.19,-103.43)  104.95                80