Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2012 12 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)
 12/20/2012   15:11:12   (  18.79, 158.82) 12/20/2012   15:10:08    (  19.31, 156.31)  270.35             64
 12/28/2012   15:59:44   (  22.61, 147.32) 12/28/2012   15:59:47    (  23.24, 144.60)  288.02              3
 01/05/2013   15:11:40   (  18.12, 158.61) 01/05/2013   15:10:24    (  18.60, 156.13)  267.07             76