Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 2 16.  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)
 02/22/2013   15:13:16   (  16.19, 157.99) 02/22/2013   15:11:28    (  16.69, 155.62)  258.95            108
 02/28/2013   02:28:29   (  22.30, 163.41) 02/28/2013   02:28:35    (  21.59, 160.24)  336.26              6
 02/28/2013   04:04:03   (  10.10, 141.43) 02/28/2013   04:06:26    (   8.73, 137.91)  415.98            143
 03/05/2013   15:01:15   (  22.61, 162.03) 03/05/2013   15:03:27    (  23.34, 158.79)  342.06            132
 03/11/2013   02:21:14   (  20.26, 165.56) 03/11/2013   02:21:54    (  19.56, 162.28)  351.49             40
 03/11/2013   03:57:48   (  11.52, 142.78) 03/11/2013   04:00:53    (  10.69, 139.00)  423.16            185