Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 3 2.  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)
 03/02/2013   15:59:39   (  22.62, 147.45) 03/02/2013   16:00:29    (  23.28, 144.52)  308.84             50
 03/10/2013   15:10:36   (  21.49, 159.54) 03/10/2013   15:10:16    (  22.01, 156.86)  282.72             20
 03/18/2013   15:59:44   (  22.61, 147.46) 03/18/2013   16:00:48    (  23.27, 144.47)  315.30             64
 03/26/2013   15:10:12   (  22.69, 159.87) 03/26/2013   15:10:12    (  23.21, 157.12)  287.91              0