Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2013 1 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)
 01/16/2013   06:32:49   (  38.44, -67.80) 01/16/2013   06:30:31    (  38.77, -69.77)  175.13            138
 01/16/2013   08:08:29   (  49.94, -88.43) 01/16/2013   08:08:40    (  50.39, -90.72)  170.55             11
 01/16/2013   09:47:22   (  49.94,-113.15) 01/16/2013   09:50:08    (  50.50,-116.04)  214.99            166
 01/18/2013   19:06:37   (  49.97, -92.65) 01/18/2013   18:58:56    (  49.67, -94.30)  123.40            461
 01/18/2013   20:45:30   (  49.97,-117.37) 01/18/2013   20:40:24    (  49.57,-119.63)  168.66            306