Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2018 1 8.  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)
 01/11/2018   15:59:31   (  22.60, 147.50) 01/11/2018   16:01:54    (  23.27, 144.52)  313.42            143
 01/19/2018   15:10:06   (  22.58, 159.86) 01/19/2018   15:11:05    (  23.20, 157.21)  280.39             59
 01/22/2018   03:31:56   (  22.64, 147.54) 01/22/2018   03:28:27    (  26.66, 144.72)  530.46            209
 01/27/2018   15:59:33   (  22.62, 147.52) 01/27/2018   16:01:44    (  23.27, 144.56)  312.48            131
 02/04/2018   15:10:06   (  22.59, 159.89) 02/04/2018   15:10:55    (  23.15, 157.23)  280.09             49