Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 2 28.  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)
 03/02/2013   15:59:39   (  22.62, 147.45) 03/02/2013   16:00:29    (  23.28, 144.52)  308.86             50
 03/10/2013   15:10:37   (  21.46, 159.53) 03/10/2013   15:10:17    (  21.95, 156.85)  282.81             20
 03/18/2013   15:59:45   (  22.63, 147.46) 03/18/2013   16:00:48    (  23.29, 144.47)  314.80             63
 03/26/2013   15:10:17   (  22.55, 159.83) 03/26/2013   15:10:15    (  23.06, 157.08)  287.49              2