Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2013 5 11.  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)
 05/16/2013   07:19:16   (  49.92, -76.00) 05/16/2013   07:19:50    (  50.38, -78.27)  169.58             34
 05/16/2013   08:58:09   (  49.91,-100.73) 05/16/2013   09:01:18    (  50.49,-103.60)  214.12            189
 05/18/2013   18:17:18   (  49.96, -80.14) 05/18/2013   18:10:08    (  49.67, -81.89)  129.85            430
 05/18/2013   19:56:11   (  49.97,-104.86) 05/18/2013   19:51:36    (  49.56,-107.22)  175.14            275
 05/21/2013   09:24:45   (  20.00,-114.19) 05/21/2013   09:16:25    (  19.93,-114.88)   72.32            500