Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2013 7 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)
 07/21/2013   18:17:11   (  49.99, -80.20) 07/21/2013   18:10:05    (  49.72, -81.72)  113.52            426
 07/21/2013   19:56:04   (  49.99,-104.92) 07/21/2013   19:51:33    (  49.60,-107.05)  158.77            271
 07/21/2013   21:31:13   (  36.64,-124.99) 07/21/2013   21:29:11    (  36.16,-127.51)  231.77            122
 07/24/2013   09:24:43   (  20.00,-114.26) 07/24/2013   09:16:23    (  20.05,-114.67)   43.74            500
 07/27/2013   06:30:39   (  45.66, -65.30) 07/27/2013   06:30:26    (  46.01, -67.26)  156.24             13
 07/27/2013   08:08:20   (  49.94, -88.35) 07/27/2013   08:10:40    (  50.39, -90.78)  180.50            140
 07/27/2013   09:47:13   (  49.94,-113.07) 07/27/2013   09:52:07    (  50.56,-116.08)  224.93            294
 07/29/2013   19:06:27   (  49.98, -92.52) 07/29/2013   19:01:01    (  49.67, -94.42)  140.50            326