Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2013 3 15.  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)
 03/15/2013   18:17:25   (  49.94, -80.25) 03/15/2013   18:09:25    (  49.65, -81.84)  118.76            480
 03/15/2013   19:56:19   (  49.99,-104.99) 03/15/2013   19:50:54    (  49.60,-107.19)  163.95            325
 03/15/2013   21:31:25   (  36.45,-125.00) 03/15/2013   21:28:29    (  35.98,-127.61)  240.05            176
 03/21/2013   06:32:10   (  41.83, -66.68) 03/21/2013   06:30:51    (  42.22, -68.83)  183.00             79
 03/21/2013   08:08:47   (  49.93, -88.38) 03/21/2013   08:09:59    (  50.42, -90.93)  189.23             72
 03/21/2013   09:47:40   (  49.94,-113.10) 03/21/2013   09:51:26    (  50.59,-116.22)  233.59            226
 03/23/2013   19:06:58   (  49.96, -92.62) 03/23/2013   19:00:18    (  49.60, -94.53)  142.35            400
 03/23/2013   20:45:50   (  49.95,-117.34) 03/23/2013   20:41:46    (  49.49,-119.85)  187.69            245