Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 1 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)
 01/21/2013   15:11:17   (  18.25, 158.76) 01/21/2013   15:10:04    (  18.72, 156.27)  268.19             73
 01/29/2013   15:59:17   (  22.59, 147.48) 01/29/2013   15:59:33    (  23.23, 144.70)  294.08             16
 02/06/2013   15:10:03   (  20.61, 159.47) 02/06/2013   15:09:29    (  21.10, 156.84)  278.71             34