Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2013 1 20.  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)
 01/24/2013   07:19:31   (  47.65, -76.94) 01/24/2013   07:18:52    (  47.98, -79.13)  167.76             39
 01/24/2013   08:57:46   (  49.90,-100.75) 01/24/2013   08:59:39    (  50.46,-103.43)  200.56            113
 01/26/2013   18:16:57   (  49.95, -80.21) 01/26/2013   18:08:38    (  49.96, -81.83)  115.81            499
 01/26/2013   19:55:50   (  49.95,-104.93) 01/26/2013   19:50:01    (  49.56,-107.02)  156.47            349
 01/26/2013   21:30:58   (  36.55,-124.98) 01/26/2013   21:27:38    (  36.06,-127.48)  230.45            200