Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2012 12 16.  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   15:11:07   (  18.89, 158.86) 12/20/2012   15:10:04    (  19.41, 156.35)  270.55             63
 12/28/2012   15:59:28   (  22.59, 147.39) 12/28/2012   15:59:40    (  23.21, 144.62)  291.90             12
 01/05/2013   15:10:37   (  19.48, 159.09) 01/05/2013   15:09:44    (  19.98, 156.53)  273.50             53