Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 1 11.  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)
 01/12/2016   02:02:40   (  79.24,  44.50) 01/12/2016   02:02:14  (  79.24,  44.48)    0.37                26
 01/12/2016   02:52:00   ( -79.52,-146.02) 01/12/2016   02:52:51  ( -79.52,-146.04)    0.42                51
 01/14/2016   18:19:08   (  79.34, 161.01) 01/14/2016   18:19:03  (  79.34, 160.99)    0.62                 5
 01/14/2016   19:08:28   ( -79.62, -29.46) 01/14/2016   19:09:40  ( -79.61, -29.49)    0.70                72
 01/17/2016   09:46:18   ( -79.16, 108.10) 01/17/2016   09:45:16  ( -79.17, 108.19)    2.20                62
 01/17/2016   10:35:37   (  79.43, -82.53) 01/17/2016   10:35:53  (  79.43, -82.52)    0.51                16
 01/20/2016   02:02:49   ( -79.16,-136.02) 01/20/2016   02:02:09  ( -79.16,-136.11)    1.91                40
 01/20/2016   02:52:04   (  79.58,  34.39) 01/20/2016   02:52:41  (  79.59,  34.52)    2.86                37
 01/22/2016   18:19:15   ( -79.35, -18.96) 01/22/2016   18:18:56  ( -79.36, -18.89)    1.68                19