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   (  49.49, -76.22) 05/13/2012   07:19:14    (  49.85, -78.49)  167.95              8
 05/13/2012   08:58:08   (  49.91,-100.77) 05/13/2012   09:00:33    (  50.47,-103.58)  209.92            145
 05/15/2012   18:17:24   (  49.97, -80.22) 05/15/2012   18:09:21    (  49.71, -81.80)  116.88            483
 05/15/2012   19:56:17   (  49.97,-104.94) 05/15/2012   19:50:49    (  49.60,-107.12)  162.12            328
 05/15/2012   21:31:25   (  36.55,-124.99) 05/15/2012   21:28:25    (  36.05,-127.57)  237.62            180