Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2013 2 20.  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)
 02/25/2013   07:19:08   (  49.37, -76.22) 02/25/2013   07:18:58    (  49.72, -78.49)  168.08             10
 02/25/2013   08:57:52   (  49.91,-100.72) 02/25/2013   09:00:15    (  50.46,-103.53)  209.38            143
 02/27/2013   18:17:08   (  49.98, -80.22) 02/27/2013   18:09:06    (  49.71, -81.81)  117.88            482
 02/27/2013   19:56:01   (  49.98,-104.94) 02/27/2013   19:50:34    (  49.60,-107.14)  163.13            327
 02/27/2013   21:31:09   (  36.56,-124.99) 02/27/2013   21:28:10    (  36.05,-127.57)  238.81            179