Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2013 1 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)
 01/16/2013   06:32:52   (  38.36, -67.83) 01/16/2013   06:30:32    (  38.74, -69.79)  175.02            140
 01/16/2013   08:08:31   (  49.92, -88.44) 01/16/2013   08:08:41    (  50.36, -90.74)  170.48             10
 01/16/2013   09:47:24   (  49.92,-113.16) 01/16/2013   09:50:08    (  50.52,-116.04)  214.92            164
 01/18/2013   19:06:40   (  49.96, -92.65) 01/18/2013   18:58:56    (  49.65, -94.29)  122.65            464
 01/18/2013   20:45:33   (  49.95,-117.37) 01/18/2013   20:40:24    (  49.54,-119.62)  167.91            309