Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2012 5 10.  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)
 05/13/2012   07:19:22   (  49.50, -76.22) 05/13/2012   07:19:14    (  49.85, -78.49)  167.87              8
 05/13/2012   08:58:08   (  49.92,-100.76) 05/13/2012   09:00:33    (  50.48,-103.58)  209.79            145
 05/15/2012   18:17:23   (  49.96, -80.21) 05/15/2012   18:09:19    (  49.65, -81.77)  116.83            484
 05/15/2012   19:56:16   (  49.96,-104.93) 05/15/2012   19:50:47    (  49.55,-107.10)  162.08            329
 05/15/2012   21:31:24   (  36.54,-124.99) 05/15/2012   21:28:24    (  36.06,-127.57)  237.53            180