Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2013 5 14.  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)
 05/16/2013   07:19:16   (  49.91, -76.01) 05/16/2013   07:19:50    (  50.38, -78.27)  169.72             34
 05/16/2013   08:58:09   (  49.90,-100.73) 05/16/2013   09:01:18    (  50.49,-103.60)  214.27            189
 05/18/2013   18:17:18   (  49.99, -80.15) 05/18/2013   18:10:08    (  49.68, -81.89)  129.93            430
 05/18/2013   19:56:10   (  49.94,-104.85) 05/18/2013   19:51:35    (  49.51,-107.19)  175.34            275
 05/21/2013   09:24:44   (  20.01,-114.19) 05/21/2013   09:16:24    (  19.98,-114.87)   70.99            500