Simultaneous Nadir Overpasses (SNOs) near US between NOAA-19 and NPP
TLE Epoch: 2014 4 23.  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)
 04/26/2014   19:32:58   (  49.97, -96.69) 04/26/2014   19:25:38    (  49.50, -99.30)  195.34            440
 04/26/2014   21:15:02   (  49.99,-122.21) 04/26/2014   21:07:09    (  49.55,-124.70)  185.53            473