Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2014 9 18.  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)
 09/18/2014   16:19:14   (  18.41, 141.83) 09/18/2014   16:18:03    (  18.43, 141.76)    7.48             71
 09/24/2014   03:28:31   (  10.09, 150.30) 09/24/2014   03:31:59    (   8.91, 148.99)  195.28            208
 09/26/2014   15:32:11   (  10.03, 152.30) 09/26/2014   15:29:44    (  10.00, 152.48)   19.26            147
 10/02/2014   02:39:05   (  10.08, 162.66) 10/02/2014   02:41:32    (   9.85, 161.47)  133.22            147
 10/04/2014   16:19:17   (  18.44, 141.81) 10/04/2014   16:18:07    (  18.44, 141.77)    4.04             70
 10/10/2014   03:28:27   (  10.08, 150.32) 10/10/2014   03:31:56    (   8.49, 149.10)  221.45            209
 10/12/2014   15:32:03   (  10.01, 152.32) 10/12/2014   15:29:47    (   9.98, 152.49)   18.21            136