Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2012 9 11.  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)
 09/12/2012   19:06:01   (  49.95, -92.51) 09/12/2012   18:59:09    (  49.61, -94.35)  137.01            412
 09/12/2012   20:44:54   (  49.95,-117.23) 09/12/2012   20:40:37    (  49.50,-119.67)  182.35            257
 09/18/2012   07:18:22   (  49.46, -76.14) 09/18/2012   07:18:13    (  49.86, -78.37)  166.31              9
 09/18/2012   08:57:07   (  49.93,-100.67) 09/18/2012   08:59:32    (  50.48,-103.47)  208.24            145
 09/20/2012   18:16:19   (  49.99, -80.11) 09/20/2012   18:08:20    (  49.72, -81.69)  117.32            479
 09/20/2012   19:55:12   (  50.00,-104.84) 09/20/2012   19:49:48    (  49.61,-107.02)  162.56            324
 09/20/2012   21:30:26   (  36.95,-125.00) 09/20/2012   21:27:31    (  36.47,-127.59)  237.42            175