Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2013 4 2.  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)
 04/06/2013   06:32:38   (  41.52, -66.84) 04/06/2013   06:31:11    (  41.89, -68.97)  182.01             87
 04/06/2013   08:09:10   (  49.91, -88.45) 04/06/2013   08:10:13    (  50.44, -90.95)  187.23             63
 04/06/2013   09:48:03   (  49.92,-113.16) 04/06/2013   09:51:41    (  50.55,-116.27)  231.56            218
 04/08/2013   19:07:22   (  49.95, -92.69) 04/08/2013   19:00:32    (  49.61, -94.56)  139.68            410
 04/08/2013   20:46:15   (  49.94,-117.40) 04/08/2013   20:42:00    (  49.50,-119.88)  185.01            255