Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2014 8 12.  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)
 08/15/2014   06:30:07   (  75.45, -37.93) 08/15/2014   06:29:26  (  75.46, -37.88)    1.48                41
 08/15/2014   07:19:19   ( -76.23, 132.04) 08/15/2014   07:19:55  ( -76.23, 131.99)    1.39                36
 08/17/2014   22:46:28   (  75.80,  78.96) 08/17/2014   22:46:19  (  75.81,  79.00)    1.54                 9
 08/17/2014   23:35:40   ( -76.57,-110.95) 08/17/2014   23:36:48  ( -76.57,-111.00)    1.33                68
 08/20/2014   14:13:49   ( -74.89,  24.66) 08/20/2014   14:12:55  ( -74.88,  24.61)    1.74                54
 08/20/2014   15:02:53   (  75.93,-164.76) 08/20/2014   15:03:17  (  75.92,-164.85)    2.83                24
 08/23/2014   06:30:03   ( -75.51, 142.22) 08/23/2014   06:29:41  ( -75.51, 142.26)    1.08                22
 08/23/2014   07:19:09   (  76.44, -47.27) 08/23/2014   07:20:05  (  76.44, -47.26)    0.42                56
 08/25/2014   21:57:22   (  74.50,  87.83) 08/25/2014   21:56:17  (  74.49,  87.75)    2.68                65