Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 3 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)
 03/08/2016   02:52:23   (  79.40,  33.23) 03/08/2016   02:51:56  (  79.40,  33.14)    2.09                27
 03/08/2016   03:41:42   ( -79.71,-156.96) 03/08/2016   03:42:32  ( -79.71,-156.92)    0.86                50
 03/10/2016   19:08:48   (  79.50, 149.77) 03/10/2016   19:08:45  (  79.50, 149.71)    1.27                 3
 03/10/2016   19:57:56   ( -80.18, -37.20) 03/10/2016   19:59:10  ( -80.13, -37.03)    6.80                74
 03/13/2016   10:35:55   ( -79.32,  96.83) 03/13/2016   10:34:59  ( -79.32,  96.81)    0.42                56
 03/13/2016   11:25:13   (  79.62, -93.50) 03/13/2016   11:25:34  (  79.62, -93.44)    1.49                21
 03/16/2016   02:52:21   ( -79.39,-146.81) 03/16/2016   02:51:50  ( -79.39,-146.91)    2.10                31
 03/16/2016   03:41:39   (  79.68,  22.87) 03/16/2016   03:42:25  (  79.68,  22.86)    0.28                46
 03/18/2016   19:08:46   ( -79.49, -30.27) 03/18/2016   19:08:40  ( -79.48, -30.36)    1.89                 6