Simultaneous Nadir Overpasses (SNOs) near US between NOAA-19 and NPP
TLE Epoch: 2013 2 10.  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)
 02/10/2013   18:33:44   (  49.96, -85.19) 02/10/2013   18:27:50    (  49.73, -86.53)   98.98            354
 02/10/2013   20:15:49   (  49.97,-110.72) 02/10/2013   20:09:20    (  49.74,-111.90)   88.98            389