Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2012 12 26.  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   15:59:40   (  22.63, 147.35) 12/28/2012   15:59:42    (  23.23, 144.62)  287.26              2
 01/05/2013   15:11:48   (  17.55, 158.49) 01/05/2013   15:10:23    (  18.03, 156.04)  264.59             85
 01/13/2013   16:00:30   (  21.12, 146.90) 01/13/2013   16:00:04    (  21.62, 144.25)  279.95             26
 01/19/2013   03:10:41   (  10.07, 154.72) 01/19/2013   03:14:10    (   6.47, 151.26)  551.93            209
 01/21/2013   15:13:00   (  15.24, 157.84) 01/21/2013   15:10:57    (  15.71, 155.52)  253.79            123