Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2012 9 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)
 09/18/2012   07:18:45   (  48.82, -76.45) 09/18/2012   07:18:26    (  49.18, -78.67)  166.82             19
 09/18/2012   08:57:20   (  49.90,-100.73) 09/18/2012   08:59:34    (  50.44,-103.49)  205.43            134
 09/20/2012   18:16:43   (  50.00, -80.21) 09/20/2012   18:08:23    (  49.77, -81.73)  111.14            500
 09/20/2012   19:55:36   (  49.98,-104.93) 09/20/2012   19:49:50    (  49.61,-107.03)  156.19            346
 09/20/2012   21:30:45   (  36.61,-125.00) 09/20/2012   21:27:27    (  36.12,-127.49)  229.85            198