Simultaneous Nadir Overpasses (SNOs) near US between NOAA-19 and NPP
TLE Epoch: 2014 2 27.  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)
 03/06/2014   18:47:43   (  49.97, -85.90) 03/06/2014   18:39:25    (  49.57, -88.08)  162.68            498
 03/06/2014   20:29:47   (  49.97,-111.42) 03/06/2014   20:21:11    (  50.49,-113.87)  183.89            516