Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2012 12 21.  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)
 12/28/2012   15:59:11   (  22.64, 147.47) 12/28/2012   15:59:41    (  23.25, 144.62)  299.48             30
 01/05/2013   15:08:29   (  22.63, 160.15) 01/05/2013   15:08:52    (  23.25, 157.33)  297.16             23
 01/08/2013   03:29:45   (  22.68, 147.96) 01/08/2013   03:26:15    (  26.64, 144.83)  542.47            210
 01/13/2013   15:55:45   (  22.61, 148.34) 01/13/2013   15:59:13    (  24.36, 144.95)  397.07            208
 01/16/2013   02:37:51   (  22.64, 160.96) 01/16/2013   02:34:22    (  22.97, 158.48)  256.17            209