Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2012 5 7.  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   07:19:19   (  49.56, -76.18) 05/13/2012   07:19:12    (  49.92, -78.45)  168.21              7
 05/13/2012   08:58:06   (  49.92,-100.75) 05/13/2012   09:00:32    (  50.49,-103.57)  210.52            146
 05/15/2012   18:17:20   (  49.95, -80.19) 05/15/2012   18:09:19    (  49.68, -81.77)  117.49            481
 05/15/2012   19:56:13   (  49.95,-104.91) 05/15/2012   19:50:47    (  49.57,-107.10)  162.76            326
 05/15/2012   21:31:21   (  36.59,-124.99) 05/15/2012   21:28:23    (  36.08,-127.58)  238.46            178