Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2014 3 13.  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)
 03/13/2014   15:10:29   (  22.62, 159.87) 03/13/2014   15:13:58    (  25.89, 157.99)  411.06            209
 03/16/2014   03:30:22   (  15.26, 149.22) 03/16/2014   03:28:55    (  14.91, 147.64)  173.80             87
 03/24/2014   02:42:07   (  19.00, 160.70) 03/24/2014   02:39:38    (  18.75, 159.36)  143.50            149
 03/29/2014   15:10:46   (  22.60, 159.82) 03/29/2014   15:14:14    (  27.64, 158.36)  578.87            208
 04/01/2014   03:30:00   (  13.29, 149.64) 04/01/2014   03:29:06    (  12.93, 148.02)  179.92             54
 04/09/2014   02:41:11   (  16.13, 161.41) 04/09/2014   02:39:30    (  15.83, 159.99)  156.05            101