Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2013 1 18.  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)
 01/18/2013   20:45:30   (  50.00,-117.38) 01/18/2013   20:40:31    (  49.58,-119.66)  170.84            299
 01/24/2013   07:19:26   (  48.13, -76.77) 01/24/2013   07:18:55    (  48.51, -78.96)  167.53             31
 01/24/2013   08:57:49   (  49.91,-100.76) 01/24/2013   08:59:51    (  50.48,-103.47)  202.83            122
 01/26/2013   18:17:04   (  49.99, -80.25) 01/26/2013   18:08:56    (  49.73, -81.82)  115.68            488
 01/26/2013   19:55:57   (  49.98,-104.97) 01/26/2013   19:50:24    (  49.59,-107.13)  161.05            333
 01/26/2013   21:31:03   (  36.45,-124.99) 01/26/2013   21:27:59    (  35.95,-127.55)  236.47            184