Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2015 5 10.  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)
 05/14/2015   02:41:51   (  17.53, 161.01) 05/14/2015   02:39:47    (  17.26, 159.85)  126.73            124
 05/22/2015   03:29:31   (  12.09, 149.91) 05/22/2015   03:28:57    (  11.75, 148.42)  166.31             34
 05/30/2015   02:40:37   (  15.38, 161.62) 05/30/2015   02:39:08    (  15.12, 160.31)  144.18             89
 06/07/2015   03:28:06   (  10.09, 150.53) 06/07/2015   03:28:17    (   9.70, 148.86)  189.03             11