Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2013 4 28.  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)
 04/30/2013   07:19:51   (  49.82, -76.15) 04/30/2013   07:19:48    (  50.19, -78.38)  164.78              3
 04/30/2013   08:58:42   (  49.94,-100.82) 04/30/2013   09:01:13    (  50.48,-103.62)  208.47            151
 05/02/2013   18:17:58   (  49.98, -80.31) 05/02/2013   18:10:04    (  49.72, -81.93)  119.88            474
 05/02/2013   19:56:51   (  49.98,-105.03) 05/02/2013   19:51:32    (  49.61,-107.25)  165.10            319
 05/02/2013   21:31:54   (  36.26,-124.99) 05/02/2013   21:29:03    (  35.77,-127.60)  241.00            171
 05/08/2013   06:32:19   (  42.64, -66.45) 05/08/2013   06:31:11    (  42.98, -68.59)  178.47             68
 05/08/2013   08:09:10   (  49.89, -88.45) 05/08/2013   08:10:33    (  50.36, -90.98)  188.20             83
 05/08/2013   09:48:03   (  49.89,-113.17) 05/08/2013   09:52:00    (  50.53,-116.28)  232.62            237