Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2013 4 26.  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)
 04/30/2013   07:19:51   (  49.79, -76.16) 04/30/2013   07:19:48    (  50.17, -78.39)  164.89              3
 04/30/2013   08:58:42   (  49.91,-100.83) 04/30/2013   09:01:13    (  50.46,-103.63)  208.62            151
 05/02/2013   18:17:57   (  49.94, -80.29) 05/02/2013   18:10:03    (  49.68, -81.91)  119.92            474
 05/02/2013   19:56:51   (  50.00,-105.04) 05/02/2013   19:51:32    (  49.63,-107.26)  165.08            319
 05/02/2013   21:31:54   (  36.29,-125.00) 05/02/2013   21:29:03    (  35.78,-127.60)  240.99            171