Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 6 30.  Predictions up to the next  30.0 days:

Date(AQUA)     Time(AQUA)   AQUA Lat/Lon   Date(NPP)     Time(NPP)    NPP Lat/Lon    Distance (km)   Time Diff(sec)
 06/30/2013   15:09:54   (  22.61, 159.89) 06/30/2013   15:10:38    (  23.22, 157.25)  279.22             44
 07/03/2013   03:31:39   (  22.64, 147.60) 07/03/2013   03:28:10    (  27.16, 144.60)  586.90            209
 07/08/2013   15:59:05   (  22.61, 147.58) 07/08/2013   16:01:20    (  23.31, 144.61)  314.56            135
 07/16/2013   15:09:19   (  22.63, 160.01) 07/16/2013   15:10:33    (  23.25, 157.31)  285.68             74
 07/19/2013   03:31:03   (  22.67, 147.72) 07/19/2013   03:27:34    (  25.36, 145.13)  398.07            209
 07/24/2013   15:58:24   (  22.60, 147.72) 07/24/2013   16:01:14    (  23.28, 144.66)  323.01            170