Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 1 7.  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)
 01/13/2013   15:59:41   (  22.46, 147.33) 01/13/2013   15:59:37    (  23.00, 144.61)  285.22              4
 01/21/2013   15:11:21   (  17.96, 158.69) 01/21/2013   15:10:03    (  18.43, 156.21)  266.75             78
 01/29/2013   15:59:17   (  22.67, 147.48) 01/29/2013   15:59:17    (  23.30, 144.77)  287.07              0