Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2012 12 10.  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)
 12/15/2012   06:32:23   (  39.59, -67.46) 12/15/2012   06:30:24    (  39.97, -69.47)  177.05            119
 12/15/2012   08:08:23   (  49.90, -88.46) 12/15/2012   08:08:54    (  50.37, -90.82)  176.22             31
 12/15/2012   09:47:16   (  49.92,-113.17) 12/15/2012   09:50:21    (  50.54,-116.12)  220.58            185
 12/17/2012   19:06:37   (  49.95, -92.67) 12/17/2012   18:59:10    (  49.66, -94.38)  127.20            447
 12/17/2012   20:45:30   (  49.94,-117.39) 12/17/2012   20:40:38    (  49.55,-119.71)  172.47            292