Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2012 6 25.  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)
 06/27/2012   15:11:01   (  19.21, 159.00) 06/27/2012   15:10:04    (  19.71, 156.47)  271.59             57
 07/05/2012   16:00:13   (  21.66, 147.08) 07/05/2012   15:59:56    (  22.18, 144.42)  281.30             17
 07/11/2012   03:10:49   (  10.09, 154.70) 07/11/2012   03:14:17    (   7.17, 151.15)  507.24            208
 07/13/2012   15:13:42   (  13.82, 157.46) 07/13/2012   15:11:15    (  14.30, 155.24)  245.27            147
 07/19/2012   02:24:11   (  16.66, 165.35) 07/19/2012   02:25:51    (  15.89, 161.87)  381.78            100
 07/21/2012   16:04:13   (  13.96, 144.84) 07/21/2012   16:01:49    (  14.40, 142.60)  245.78            144