Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 2 11.  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)
 02/14/2013   15:59:19   (  22.59, 147.50) 02/14/2013   16:00:11    (  23.26, 144.56)  309.86             52
 02/22/2013   15:09:35   (  22.60, 159.95) 02/22/2013   15:09:39    (  23.19, 157.19)  289.95              4
 03/02/2013   15:58:29   (  22.63, 147.74) 03/02/2013   16:00:33    (  23.38, 144.51)  341.13            124