Simultaneous Nadir Overpasses (SNOs) near US between NOAA-19 and NPP
TLE Epoch: 2014 3 22.  Predictions up to the next  10.0 days:

Date(NOAA-19)     Time(NOAA-19)   NOAA-19 Lat/Lon   Date(NPP)     Time(NPP)    NPP Lat/Lon    Distance (km)   Time Diff(sec)
 03/31/2014   19:16:10   (  49.98, -92.76) 03/31/2014   19:12:00    (  49.41, -96.02)  242.75            250
 03/31/2014   20:58:14   (  49.99,-118.28) 03/31/2014   20:53:31    (  49.47,-121.42)  232.94            283