Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2012 7 21.  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)
 07/24/2012   06:32:10   (  40.21, -67.23) 07/24/2012   06:30:22    (  40.57, -69.28)  177.69            108
 07/24/2012   08:08:20   (  49.91, -88.43) 07/24/2012   08:09:02    (  50.38, -90.83)  178.76             42
 07/24/2012   09:47:13   (  49.91,-113.15) 07/24/2012   09:50:30    (  50.49,-116.15)  223.23            197
 07/26/2012   19:06:28   (  49.99, -92.59) 07/26/2012   18:59:19    (  49.68, -94.37)  132.12            429
 07/26/2012   20:45:21   (  49.99,-117.31) 07/26/2012   20:40:47    (  49.57,-119.70)  177.40            274