Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2013 4 25.  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   (  49.81, -76.15) 04/30/2013   07:19:48    (  50.18, -78.38)  164.80              3
 04/30/2013   08:58:42   (  49.93,-100.82) 04/30/2013   09:01:13    (  50.47,-103.63)  208.49            151
 05/02/2013   18:17:58   (  49.98, -80.31) 05/02/2013   18:10:03    (  49.67, -81.91)  119.86            475
 05/02/2013   19:56:51   (  49.98,-105.03) 05/02/2013   19:51:32    (  49.62,-107.26)  165.10            319
 05/02/2013   21:31:54   (  36.27,-124.99) 05/02/2013   21:29:03    (  35.78,-127.60)  240.97            171