Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2013 9 20.  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)
 09/21/2013   07:18:58   (  49.93, -76.04) 09/21/2013   07:21:02    (  50.33, -78.21)  161.42            124
 09/21/2013   08:57:51   (  49.93,-100.76) 09/21/2013   09:02:29    (  50.50,-103.51)  205.83            278
 09/23/2013   18:17:09   (  49.97, -80.24) 09/23/2013   18:11:21    (  49.67, -81.84)  119.39            348
 09/23/2013   19:56:02   (  49.96,-104.95) 09/23/2013   19:52:49    (  49.56,-107.16)  164.64            193
 09/23/2013   21:31:09   (  36.49,-124.99) 09/23/2013   21:30:25    (  36.01,-127.59)  239.32             44
 09/26/2013   09:23:35   (  24.25,-113.31) 09/26/2013   09:16:25    (  24.30,-113.72)   42.55            430
 09/29/2013   06:30:30   (  46.58, -65.03) 09/29/2013   06:31:22    (  46.97, -66.97)  154.51             52
 09/29/2013   08:08:27   (  49.91, -88.42) 09/29/2013   08:11:53    (  50.37, -90.89)  183.07            206
 09/29/2013   09:47:20   (  49.91,-113.14) 09/29/2013   09:53:20    (  50.54,-116.18)  227.45            360