Simultaneous Nadir Overpasses (SNOs) near US between NOAA-19 and NPP
TLE Epoch: 2014 2 15.  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)
 02/21/2014   19:29:50   (  49.95, -96.55) 02/21/2014   19:23:39    (  49.50, -99.18)  195.91            371
 02/21/2014   21:11:54   (  49.96,-122.07) 02/21/2014   21:05:09    (  49.50,-124.56)  186.10            405