Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2012 5 20.  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    (  42.04, -68.85)  180.96             82
 05/21/2012   08:08:32   (  49.93, -88.39) 05/21/2012   08:09:41    (  50.41, -90.90)  186.77             69
 05/21/2012   09:47:25   (  49.93,-113.11) 05/21/2012   09:51:08    (  50.57,-116.20)  231.19            223
 05/23/2012   19:06:38   (  49.94, -92.53) 05/23/2012   18:59:56    (  49.63, -94.42)  140.53            402
 05/23/2012   20:45:31   (  49.94,-117.25) 05/23/2012   20:41:24    (  49.53,-119.75)  185.85            247
 05/29/2012   07:18:52   (  49.93, -75.99) 05/29/2012   07:18:51    (  50.31, -78.25)  166.42              1
 05/29/2012   08:57:45   (  49.93,-100.71) 05/29/2012   09:00:18    (  50.47,-103.55)  210.79            153