Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 1 14.  Predictions up to the next  14.0 days:

     Date     Time(AURA) AURA Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/17/2016   09:46:20   ( -79.09, 107.64) 01/17/2016   09:45:19  ( -79.08, 107.56)    1.86                61
 01/17/2016   10:35:36   (  79.48, -82.21) 01/17/2016   10:35:52  (  79.49, -82.09)    2.77                16
 01/20/2016   02:02:45   ( -79.28,-135.30) 01/20/2016   02:02:05  ( -79.28,-135.20)    2.08                40
 01/20/2016   02:52:04   (  79.54,  34.11) 01/20/2016   02:52:42  (  79.54,  34.14)    0.59                38
 01/22/2016   18:19:13   ( -79.37, -18.81) 01/22/2016   18:18:55  ( -79.37, -18.73)    1.58                18
 01/22/2016   19:08:33   (  79.59, 150.35) 01/22/2016   19:09:33  (  79.59, 150.36)    0.27                60
 01/25/2016   09:46:24   (  79.04, -72.64) 01/25/2016   09:45:12  (  79.03, -72.77)    3.03                72
 01/25/2016   10:35:40   ( -79.49,  97.86) 01/25/2016   10:35:44  ( -79.49,  98.00)    2.90                 4
 01/28/2016   02:02:49   (  79.23,  44.39) 01/28/2016   02:01:59  (  79.23,  44.40)    0.23                50