Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2013 6 12.  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)
 06/17/2013   07:19:08   (  49.94, -76.00) 06/17/2013   07:19:50    (  50.34, -78.20)  163.02             42
 06/17/2013   08:58:01   (  49.94,-100.73) 06/17/2013   09:01:17    (  50.51,-103.50)  207.47            196
 06/19/2013   18:17:15   (  49.98, -80.18) 06/19/2013   18:10:07    (  49.71, -81.82)  121.63            428
 06/19/2013   19:56:08   (  49.99,-104.90) 06/19/2013   19:51:35    (  49.60,-107.14)  166.85            273
 06/19/2013   21:31:18   (  36.69,-124.99) 06/19/2013   21:29:13    (  36.17,-127.61)  241.83            125