Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2013 3 13.  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   18:17:26   (  49.99, -80.27) 03/15/2013   18:09:26    (  49.70, -81.86)  118.74            480
 03/15/2013   19:56:19   (  49.98,-104.99) 03/15/2013   19:50:54    (  49.58,-107.19)  163.99            325
 03/15/2013   21:31:25   (  36.44,-125.00) 03/15/2013   21:28:29    (  35.97,-127.61)  240.08            176
 03/21/2013   06:32:10   (  41.86, -66.67) 03/21/2013   06:30:51    (  42.23, -68.82)  182.87             79
 03/21/2013   08:08:47   (  49.89, -88.40) 03/21/2013   08:09:59    (  50.37, -90.95)  189.40             72
 03/21/2013   09:47:40   (  49.90,-113.12) 03/21/2013   09:51:26    (  50.54,-116.24)  233.77            226