Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2012 9 6.  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)
 09/10/2012   06:31:32   (  41.02, -66.91) 09/10/2012   06:30:00    (  41.39, -69.00)  179.71             92
 09/10/2012   08:07:56   (  49.88, -88.38) 09/10/2012   08:08:54    (  50.39, -90.83)  183.60             58
 09/10/2012   09:46:48   (  49.88,-113.10) 09/10/2012   09:50:21    (  50.50,-116.16)  228.08            213
 09/12/2012   19:06:00   (  49.99, -92.53) 09/12/2012   18:59:09    (  49.69, -94.38)  137.14            411
 09/12/2012   20:44:53   (  49.99,-117.25) 09/12/2012   20:40:37    (  49.58,-119.71)  182.42            256