Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2013 5 22.  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)
 05/24/2013   06:31:40   (  43.86, -66.00) 05/24/2013   06:30:54    (  44.19, -68.11)  172.88             46
 05/24/2013   08:08:50   (  49.93, -88.40) 05/24/2013   08:10:35    (  50.42, -90.93)  187.65            105
 05/24/2013   09:47:43   (  49.93,-113.12) 05/24/2013   09:52:02    (  50.58,-116.22)  232.00            259
 05/26/2013   19:07:00   (  49.95, -92.57) 05/26/2013   19:00:52    (  49.60, -94.53)  145.80            368
 05/26/2013   20:45:53   (  49.94,-117.29) 05/26/2013   20:42:20    (  49.49,-119.85)  191.11            213