Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2013 2 21.  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)
 02/25/2013   07:19:09   (  49.32, -76.25) 02/25/2013   07:18:58    (  49.70, -78.50)  168.11             11
 02/25/2013   08:57:52   (  49.92,-100.72) 02/25/2013   09:00:14    (  50.50,-103.51)  209.29            142
 02/27/2013   18:17:10   (  49.99, -80.23) 02/27/2013   18:09:07    (  49.71, -81.81)  117.64            483
 02/27/2013   19:56:03   (  49.99,-104.95) 02/27/2013   19:50:35    (  49.60,-107.14)  162.89            328
 02/27/2013   21:31:11   (  36.57,-125.00) 02/27/2013   21:28:12    (  36.10,-127.59)  238.53            179