Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2014 2 20.  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)
 02/25/2014   15:10:40   (  22.61, 159.79) 02/25/2014   15:14:08    (  24.72, 157.63)  321.00            208
 02/28/2014   03:30:45   (  16.40, 148.92) 02/28/2014   03:28:59    (  16.04, 147.35)  172.02            106
 03/08/2014   02:42:07   (  20.00, 160.52) 03/08/2014   02:39:22    (  19.70, 159.18)  144.10            165
 03/13/2014   15:10:15   (  22.61, 159.93) 03/13/2014   15:13:44    (  26.79, 158.21)  495.84            209
 03/16/2014   03:29:35   (  14.00, 149.61) 03/16/2014   03:28:29    (  13.66, 147.95)  182.84             66