Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 7 27.  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)
 07/28/2015   00:24:31   ( -78.21,-116.69) 07/28/2015   00:23:18  ( -78.20,-116.81)    2.98                73
 07/28/2015   01:13:45   (  78.71,  53.53) 07/28/2015   01:13:49  (  78.70,  53.44)    2.10                 4
 07/30/2015   16:40:55   ( -78.43,   0.30) 07/30/2015   16:40:04  ( -78.43,   0.26)    0.87                51
 07/30/2015   17:30:10   (  78.88, 170.36) 07/30/2015   17:30:36  (  78.89, 170.38)    0.52                26
 08/02/2015   08:57:19   ( -78.69, 117.51) 08/02/2015   08:56:50  ( -78.70, 117.61)    2.46                29
 08/02/2015   09:46:38   (  78.96, -73.30) 08/02/2015   09:47:27  (  78.96, -73.39)    2.00                49
 08/05/2015   01:13:47   ( -78.76,-126.21) 08/05/2015   01:13:41  ( -78.77,-126.17)    0.78                 6
 08/05/2015   02:03:02   (  79.19,  43.96) 08/05/2015   02:04:13  (  79.20,  44.10)    3.06                71
 08/07/2015   16:40:58   (  78.39,-179.97) 08/07/2015   16:39:58  (  78.38, 179.98)    1.05                60
 08/07/2015   17:30:14   ( -78.87,  -9.74) 08/07/2015   17:30:31  ( -78.87,  -9.72)    0.30                17
 08/10/2015   08:57:22   (  78.57, -63.15) 08/10/2015   08:56:45  (  78.57, -63.16)    0.11                37