Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2012 9 14.  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)
 09/18/2012   07:18:39   (  49.03, -76.35) 09/18/2012   07:18:23    (  49.39, -78.58)  166.58             16
 09/18/2012   08:57:17   (  49.93,-100.70) 09/18/2012   08:59:34    (  50.48,-103.47)  206.09            137
 09/20/2012   18:16:37   (  49.99, -80.18) 09/20/2012   18:08:23    (  49.72, -81.70)  113.01            494
 09/20/2012   19:55:30   (  49.98,-104.90) 09/20/2012   19:49:51    (  49.61,-107.03)  158.21            339
 09/20/2012   21:30:39   (  36.67,-124.99) 09/20/2012   21:27:28    (  36.18,-127.51)  232.32            191