Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 2 14.  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   15:59:21   (  22.61, 147.49) 02/14/2013   16:00:11    (  23.25, 144.56)  308.57             50
 02/22/2013   15:10:03   (  21.84, 159.70) 02/22/2013   15:09:49    (  22.37, 157.01)  283.91             14
 03/02/2013   15:59:15   (  22.59, 147.54) 03/02/2013   16:00:25    (  23.29, 144.53)  317.71             70
 03/10/2013   15:09:48   (  22.66, 159.93) 03/10/2013   15:09:48    (  23.19, 157.18)  287.51              0