Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 1 7.  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)
 01/09/2016   09:46:10   (  79.17, -71.85) 01/09/2016   09:45:23  (  79.17, -71.81)    0.91                47
 01/09/2016   10:35:29   ( -79.49,  97.88) 01/09/2016   10:35:59  ( -79.49,  97.92)    0.86                30
 01/12/2016   02:02:40   (  79.24,  44.49) 01/12/2016   02:02:14  (  79.24,  44.44)    1.20                26
 01/12/2016   02:52:00   ( -79.52,-146.00) 01/12/2016   02:52:51  ( -79.52,-146.07)    1.36                51
 01/14/2016   18:19:09   (  79.31, 160.77) 01/14/2016   18:19:04  (  79.30, 160.68)    2.07                 5
 01/14/2016   19:08:29   ( -79.58, -29.69) 01/14/2016   19:09:41  ( -79.58, -29.80)    2.33                72
 01/17/2016   09:46:19   ( -79.13, 107.90) 01/17/2016   09:45:17  ( -79.13, 107.90)    0.19                62
 01/17/2016   10:35:38   (  79.40, -82.76) 01/17/2016   10:35:54  (  79.39, -82.84)    1.73                16
 01/20/2016   02:02:47   ( -79.26,-135.45) 01/20/2016   02:02:06  ( -79.26,-135.39)    1.29                41