Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2012 4 23.  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)
 04/27/2012   07:19:26   (  49.73, -76.12) 04/27/2012   07:19:22    (  50.09, -78.41)  168.95              4
 04/27/2012   08:58:16   (  49.91,-100.76) 04/27/2012   09:00:45    (  50.48,-103.61)  212.18            149
 04/29/2012   18:17:31   (  49.97, -80.25) 04/29/2012   18:09:33    (  49.67, -81.81)  116.36            478
 04/29/2012   19:56:24   (  49.97,-104.97) 04/29/2012   19:51:01    (  49.57,-107.13)  161.64            323
 04/29/2012   21:31:30   (  36.43,-124.99) 04/29/2012   21:28:36    (  35.96,-127.57)  238.14            174