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   06:32:11   (  40.20, -67.24) 07/24/2012   06:30:23    (  40.56, -69.28)  177.69            108
 07/24/2012   08:08:21   (  49.90, -88.43) 07/24/2012   08:09:03    (  50.38, -90.83)  178.81             42
 07/24/2012   09:47:14   (  49.90,-113.15) 07/24/2012   09:50:31    (  50.49,-116.16)  223.28            197
 07/26/2012   19:06:27   (  49.94, -92.57) 07/26/2012   18:59:18    (  49.63, -94.35)  132.18            429
 07/26/2012   20:45:21   (  50.00,-117.32) 07/26/2012   20:40:47    (  49.57,-119.70)  177.39            274