Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2014 7 28.  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)
 07/30/2014   06:30:07   (  75.41, -38.04) 07/30/2014   06:29:31  (  75.41, -38.05)    0.41                36
 07/30/2014   07:19:18   ( -76.24, 132.08) 07/30/2014   07:19:59  ( -76.23, 132.00)    2.66                41
 08/01/2014   22:46:30   (  75.84,  79.08) 08/01/2014   22:46:20  (  75.85,  79.16)    2.33                10
 08/01/2014   23:35:43   ( -76.57,-110.97) 08/01/2014   23:36:50  ( -76.57,-110.97)    0.14                67
 08/04/2014   14:13:55   ( -75.02,  24.99) 08/04/2014   14:12:53  ( -75.03,  25.05)    1.96                62
 08/04/2014   15:03:02   (  75.92,-164.83) 08/04/2014   15:03:18  (  75.92,-164.84)    0.32                16
 08/07/2014   06:30:27   ( -75.15, 141.17) 08/07/2014   06:29:50  ( -75.15, 141.16)    0.26                37
 08/07/2014   07:19:33   (  76.09, -48.46) 08/07/2014   07:20:14  (  76.08, -48.54)    2.24                41
 08/09/2014   22:46:58   ( -75.36,-102.41) 08/09/2014   22:46:45  ( -75.35,-102.46)    1.69                13