Simultaneous Nadir Overpasses (SNOs) near US between NOAA-19 and NPP
TLE Epoch: 2013 10 24.  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)
 10/30/2013   18:22:26   (  49.96, -80.70) 10/30/2013   18:18:01    (  49.52, -83.31)  194.00            265
 10/30/2013   20:04:31   (  50.00,-106.24) 10/30/2013   19:59:32    (  49.58,-108.71)  183.89            299