Simultaneous Nadir Overpasses (SNOs) near US between NOAA-19 and NPP
TLE Epoch: 2013 10 14.  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)
 10/17/2013   19:03:28   (  49.96, -91.06) 10/17/2013   19:02:18    (  49.42, -94.40)  247.39             70
 10/17/2013   20:45:32   (  49.94,-116.57) 10/17/2013   20:43:48    (  49.42,-119.77)  237.55            104
 10/18/2013   18:52:28   (  49.95, -88.30) 10/18/2013   18:43:52    (  51.42, -90.55)  228.38            516