Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2013 3 18.  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)
 03/21/2013   06:32:17   (  41.36, -66.83) 03/21/2013   06:30:50    (  41.74, -68.96)  182.52             87
 03/21/2013   08:08:46   (  49.93, -88.38) 03/21/2013   08:09:49    (  50.44, -90.88)  186.91             63
 03/21/2013   09:47:39   (  49.94,-113.10) 03/21/2013   09:51:16    (  50.59,-116.19)  231.19            217
 03/23/2013   19:06:57   (  49.97, -92.62) 03/23/2013   18:59:53    (  49.63, -94.43)  135.38            424
 03/23/2013   20:45:50   (  49.96,-117.34) 03/23/2013   20:41:21    (  49.55,-119.77)  180.50            269