Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 6 13.  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)
 06/14/2013   15:10:20   (  22.58, 159.81) 06/14/2013   15:10:43    (  23.18, 157.19)  276.58             23
 06/22/2013   15:59:35   (  22.62, 147.49) 06/22/2013   16:01:24    (  23.30, 144.56)  309.71            109
 06/30/2013   15:09:56   (  22.59, 159.88) 06/30/2013   15:10:39    (  23.16, 157.24)  278.58             43
 07/03/2013   03:31:42   (  22.69, 147.59) 07/03/2013   03:28:12    (  27.28, 144.57)  594.17            210
 07/08/2013   15:59:07   (  22.62, 147.58) 07/08/2013   16:01:19    (  23.27, 144.61)  312.92            132