Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2014 4 7.  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)
 04/09/2014   02:41:27   (  16.67, 161.23) 04/09/2014   02:39:37    (  16.36, 159.87)  148.51            110
 04/17/2014   03:28:49   (  10.14, 150.36) 04/17/2014   03:28:47    (   9.79, 148.70)  186.65              2
 04/25/2014   02:39:31   (  12.24, 162.36) 04/25/2014   02:38:54    (  11.94, 160.87)  165.37             37
 04/27/2014   16:21:17   (  10.04, 140.15) 04/27/2014   16:17:48    (   8.45, 139.33)  198.80            209
 05/03/2014   03:27:46   (  10.07, 150.61) 05/03/2014   03:29:15    (   9.65, 148.70)  214.49             89