Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2012 5 17.  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)
 05/21/2012   06:31:58   (  41.67, -66.73) 05/21/2012   06:30:36    (  42.06, -68.85)  181.08             82
 05/21/2012   08:08:32   (  49.93, -88.39) 05/21/2012   08:09:41    (  50.42, -90.90)  186.91             69
 05/21/2012   09:47:25   (  49.93,-113.11) 05/21/2012   09:51:09    (  50.53,-116.23)  231.35            224
 05/23/2012   19:06:38   (  49.94, -92.53) 05/23/2012   18:59:56    (  49.62, -94.42)  140.58            402
 05/23/2012   20:45:31   (  49.94,-117.25) 05/23/2012   20:41:24    (  49.52,-119.75)  185.90            247