Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 1 18.  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)
 01/20/2016   02:02:46   ( -79.26,-135.39) 01/20/2016   02:02:06  ( -79.27,-135.31)    1.71                40
 01/20/2016   02:52:05   (  79.53,  34.04) 01/20/2016   02:52:43  (  79.53,  34.04)    0.14                38
 01/22/2016   18:19:14   ( -79.32, -19.14) 01/22/2016   18:18:56  ( -79.32, -19.12)    0.40                18
 01/22/2016   19:08:33   (  79.58, 150.29) 01/22/2016   19:09:33  (  79.58, 150.24)    1.22                60
 01/25/2016   09:46:22   (  79.12, -72.18) 01/25/2016   09:45:09  (  79.12, -72.15)    0.77                73
 01/25/2016   10:35:41   ( -79.44,  97.55) 01/25/2016   10:35:45  ( -79.44,  97.58)    0.55                 4
 01/28/2016   02:02:48   (  79.27,  44.64) 01/28/2016   02:01:57  (  79.27,  44.75)    2.30                51
 01/28/2016   02:52:08   ( -79.55,-145.83) 01/28/2016   02:52:34  ( -79.55,-145.72)    2.14                26
 01/30/2016   18:19:17   (  79.29, 160.64) 01/30/2016   18:18:49  (  79.28, 160.59)    1.05                28