Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2013 4 29.  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   (  49.79, -76.16) 04/30/2013   07:19:48    (  50.17, -78.39)  164.93              3
 04/30/2013   08:58:42   (  49.91,-100.83) 04/30/2013   09:01:13    (  50.45,-103.63)  208.66            151
 05/02/2013   18:17:57   (  49.95, -80.29) 05/02/2013   18:10:03    (  49.69, -81.91)  119.92            474
 05/02/2013   19:56:50   (  49.95,-105.01) 05/02/2013   19:51:31    (  49.58,-107.24)  165.18            319
 05/02/2013   21:31:53   (  36.24,-124.98) 05/02/2013   21:29:02    (  35.73,-127.59)  241.10            171
 05/08/2013   06:32:18   (  42.64, -66.45) 05/08/2013   06:31:10    (  43.01, -68.58)  178.50             68
 05/08/2013   08:09:09   (  49.89, -88.44) 05/08/2013   08:10:32    (  50.40, -90.97)  188.35             83
 05/08/2013   09:48:02   (  49.89,-113.16) 05/08/2013   09:52:00    (  50.51,-116.29)  232.81            238