Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2013 3 8.  Predictions up to the next  10.0 days:

Date(AQUA)     Time(AQUA)   AQUA Lat/Lon   Date(NPP)     Time(NPP)    NPP Lat/Lon    Distance (km)   Time Diff(sec)
 03/13/2013   07:19:12   (  49.78, -76.06) 03/13/2013   07:19:09    (  50.17, -78.33)  168.21              3
 03/13/2013   08:58:03   (  49.90,-100.73) 03/13/2013   09:00:34    (  50.46,-103.57)  211.97            151
 03/15/2013   18:17:19   (  49.95, -80.23) 03/15/2013   18:09:25    (  49.65, -81.84)  120.55            474
 03/15/2013   19:56:12   (  49.94,-104.94) 03/15/2013   19:50:53    (  49.54,-107.17)  165.86            319
 03/15/2013   21:31:20   (  36.53,-124.99) 03/15/2013   21:28:30    (  36.04,-127.63)  242.22            170