Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2012 4 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)
 04/21/2012   19:07:01   (  49.96, -92.64) 04/21/2012   19:00:20    (  49.61, -94.47)  136.99            401
 04/21/2012   20:45:54   (  49.96,-117.36) 04/21/2012   20:41:48    (  49.51,-119.80)  182.30            246
 04/27/2012   07:19:31   (  49.55, -76.20) 04/27/2012   07:19:24    (  49.90, -78.49)  169.56              7
 04/27/2012   08:58:18   (  49.91,-100.77) 04/27/2012   09:00:44    (  50.46,-103.61)  211.78            146
 04/29/2012   18:17:34   (  49.96, -80.26) 04/29/2012   18:09:31    (  49.70, -81.81)  114.79            483
 04/29/2012   19:56:26   (  49.95,-104.98) 04/29/2012   19:50:58    (  49.60,-107.14)  160.05            328
 04/29/2012   21:31:32   (  36.42,-124.99) 04/29/2012   21:28:32    (  35.93,-127.55)  236.24            180