Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2015 9 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)
 09/24/2015   15:09:49   (  22.60, 159.84) 09/24/2015   15:13:17    (  25.99, 158.02)  419.63            208
 09/27/2015   03:29:38   (  15.46, 149.19) 09/27/2015   03:28:08    (  15.11, 147.69)  165.76             90
 10/05/2015   02:41:24   (  20.27, 160.48) 10/05/2015   02:38:34    (  19.98, 159.24)  133.16            170
 10/10/2015   15:09:35   (  22.58, 159.88) 10/10/2015   15:13:03    (  25.43, 157.93)  373.33            208
 10/13/2015   03:29:29   (  15.91, 149.14) 10/13/2015   03:27:52    (  15.59, 147.63)  165.54             97