Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2012 9 5.  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)
 09/07/2012   15:59:06   (  22.64, 147.46) 09/07/2012   15:59:46    (  23.30, 144.60)  302.52             40
 09/15/2012   15:09:49   (  21.17, 159.53) 09/15/2012   15:09:24    (  21.66, 156.89)  279.01             25
 09/23/2012   15:58:28   (  22.61, 147.60) 09/23/2012   15:59:34    (  23.30, 144.63)  313.46             66
 10/01/2012   15:08:30   (  22.63, 160.08) 10/01/2012   15:08:42    (  23.24, 157.33)  290.41             12