Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2013 3 19.  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)
 03/21/2013   06:32:09   (  41.84, -66.67) 03/21/2013   06:30:50    (  42.24, -68.82)  182.95             79
 03/21/2013   08:08:46   (  49.94, -88.38) 03/21/2013   08:09:58    (  50.44, -90.92)  189.20             72
 03/21/2013   09:47:40   (  49.89,-113.12) 03/21/2013   09:51:27    (  50.50,-116.27)  233.96            227
 03/23/2013   19:06:57   (  49.95, -92.62) 03/23/2013   19:00:18    (  49.64, -94.54)  142.45            399
 03/23/2013   20:45:50   (  49.95,-117.34) 03/23/2013   20:41:46    (  49.52,-119.87)  187.78            244