Simultaneous Nadir Overpasses (SNOs) near US between NOAA-19 and NPP
TLE Epoch: 2014 7 25.  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)
 07/25/2014   18:06:50   (  49.97, -74.14) 07/25/2014   17:58:59    (  49.48, -77.03)  214.72            471
 07/25/2014   19:48:54   (  49.99, -99.67) 07/25/2014   19:40:30    (  49.53,-102.43)  204.92            504