Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2015 12 16.  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)
 12/24/2015   02:41:59   (  22.19, 160.01) 12/24/2015   02:38:38    (  21.89, 158.61)  148.48            201
 12/29/2015   15:09:36   (  22.59, 159.89) 12/29/2015   15:13:04    (  23.92, 157.36)  297.65            208
 01/01/2016   03:29:54   (  17.36, 148.82) 01/01/2016   03:27:53    (  17.01, 147.11)  186.01            121
 01/09/2016   02:41:19   (  21.43, 160.31) 01/09/2016   02:38:10    (  21.10, 158.82)  159.37            189