Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2013 6 13.  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   (  49.92, -76.01) 06/17/2013   07:19:50    (  50.33, -78.21)  163.09             42
 06/17/2013   08:58:01   (  49.92,-100.73) 06/17/2013   09:01:17    (  50.50,-103.51)  207.55            196
 06/19/2013   18:17:15   (  50.00, -80.18) 06/19/2013   18:10:07    (  49.72, -81.82)  121.62            428
 06/19/2013   19:56:08   (  50.00,-104.90) 06/19/2013   19:51:35    (  49.62,-107.15)  166.83            273
 06/19/2013   21:31:18   (  36.71,-124.99) 06/19/2013   21:29:14    (  36.24,-127.63)  241.81            124
 06/22/2013   09:24:46   (  20.03,-114.24) 06/22/2013   09:16:26    (  19.69,-114.84)   73.56            500