Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 9 26.  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)
 09/27/2015   08:57:00   (  78.58, -63.01) 09/27/2015   08:55:52  (  78.57, -63.11)    2.26                68
 09/27/2015   09:46:17   ( -79.00, 106.98) 09/27/2015   09:46:26  ( -78.99, 106.89)    2.04                 9
 09/30/2015   01:13:22   (  78.74,  53.73) 09/30/2015   01:12:41  (  78.73,  53.60)    2.95                41
 09/30/2015   02:02:40   ( -79.11,-136.46) 09/30/2015   02:03:16  ( -79.11,-136.57)    2.45                36
 10/02/2015   17:29:45   (  78.88, 170.42) 10/02/2015   17:29:31  (  78.88, 170.32)    2.27                14
 10/02/2015   18:19:03   ( -79.25, -19.71) 10/02/2015   18:20:06  ( -79.25, -19.78)    1.48                63
 10/05/2015   08:56:48   ( -78.78, 118.07) 10/05/2015   08:55:43  ( -78.78, 118.17)    2.23                65
 10/05/2015   09:46:06   (  79.09, -72.46) 10/05/2015   09:46:19  (  79.09, -72.47)    0.21                13
 10/08/2015   01:13:12   ( -78.85,-125.61) 10/08/2015   01:12:35  ( -78.85,-125.63)    0.47                37