Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2012 6 18.  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)
 06/19/2012   15:59:26   (  22.64, 147.47) 06/19/2012   15:59:59    (  23.24, 144.62)  299.69             33
 06/27/2012   15:10:31   (  20.08, 159.26) 06/27/2012   15:09:48    (  20.61, 156.68)  275.10             43
 07/05/2012   15:59:00   (  22.60, 147.54) 07/05/2012   15:59:34    (  23.25, 144.70)  300.18             34
 07/13/2012   15:09:50   (  20.43, 159.46) 07/13/2012   15:09:13    (  20.93, 156.86)  276.18             37