Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2014 7 19.  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)
 07/22/2014   06:30:06   ( -75.37, 141.85) 07/22/2014   06:29:19  ( -75.36, 141.79)    1.82                47
 07/22/2014   07:19:09   (  76.46, -47.18) 07/22/2014   07:19:39  (  76.46, -47.15)    1.07                30
 07/24/2014   22:46:21   ( -75.90,-100.71) 07/24/2014   22:46:07  ( -75.91,-100.66)    1.46                14
 07/24/2014   23:35:31   (  76.64,  69.32) 07/24/2014   23:36:35  (  76.64,  69.28)    1.11                64
 07/27/2014   14:13:30   (  75.29,-154.21) 07/27/2014   14:12:33  (  75.30,-154.16)    1.37                57
 07/27/2014   15:02:40   ( -76.17,  16.02) 07/27/2014   15:03:00  ( -76.18,  16.03)    0.18                20
 07/30/2014   06:29:47   (  75.70, -37.15) 07/30/2014   06:29:24  (  75.71, -37.10)    1.48                23
 07/30/2014   07:18:58   ( -76.53, 133.07) 07/30/2014   07:19:52  ( -76.53, 133.08)    0.27                54
 08/01/2014   21:57:05   ( -74.81, -91.34) 08/01/2014   21:55:59  ( -74.81, -91.37)    0.81                66