Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2012 12 22.  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)
 12/28/2012   15:59:42   (  22.67, 147.35) 12/28/2012   15:59:42    (  23.17, 144.61)  285.84              0
 01/05/2013   15:12:06   (  16.90, 158.31) 01/05/2013   15:10:30    (  17.37, 155.90)  261.33             96
 01/13/2013   16:01:07   (  19.70, 146.51) 01/13/2013   16:00:18    (  20.22, 143.94)  274.39             49
 01/19/2013   03:10:59   (  10.06, 154.64) 01/19/2013   03:14:28    (   8.41, 150.89)  451.23            209