Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2013 3 9.  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    (  50.18, -78.33)  168.17              3
 03/13/2013   08:58:03   (  49.91,-100.73) 03/13/2013   09:00:34    (  50.47,-103.57)  211.93            151
 03/15/2013   18:17:20   (  50.00, -80.25) 03/15/2013   18:09:26    (  49.70, -81.86)  120.54            474
 03/15/2013   19:56:13   (  50.00,-104.97) 03/15/2013   19:50:54    (  49.59,-107.19)  165.80            319
 03/15/2013   21:31:20   (  36.52,-124.99) 03/15/2013   21:28:30    (  36.03,-127.62)  242.26            170