Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2015 12 21.  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   02:42:17   (  22.67, 159.86) 12/24/2015   02:38:48    (  22.47, 158.46)  144.76            209
 12/29/2015   15:09:52   (  22.64, 159.84) 12/29/2015   15:13:16    (  23.23, 157.19)  278.82            204
 01/01/2016   03:30:33   (  18.50, 148.48) 01/01/2016   03:28:13    (  18.16, 146.84)  177.70            140
 01/06/2016   15:59:14   (  22.62, 147.49) 01/06/2016   16:02:43    (  27.39, 145.58)  564.68            209
 01/09/2016   02:42:09   (  22.68, 159.90) 01/09/2016   02:38:39    (  22.74, 158.41)  152.97            210
 01/14/2016   15:09:39   (  22.59, 159.89) 01/14/2016   15:13:03    (  23.20, 157.20)  284.55            204
 01/17/2016   03:31:23   (  22.64, 147.60) 01/17/2016   03:29:08    (  22.27, 145.85)  184.74            135