Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 9 1.  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)
 09/03/2015   08:57:07   ( -78.54, 116.75) 09/03/2015   08:56:20  ( -78.54, 116.71)    1.08                47
 09/03/2015   09:46:24   (  78.90, -73.64) 09/03/2015   09:46:55  (  78.89, -73.75)    2.55                31
 09/06/2015   01:13:31   ( -78.62,-126.93) 09/06/2015   01:13:10  ( -78.61,-127.05)    2.78                21
 09/06/2015   02:02:44   (  79.14,  43.67) 09/06/2015   02:03:40  (  79.14,  43.77)    2.34                56
 09/08/2015   16:40:36   (  78.33, 179.83) 09/08/2015   16:39:24  (  78.32, 179.73)    2.34                72
 09/08/2015   17:29:49   ( -78.94,  -9.28) 09/08/2015   17:29:53  ( -78.95,  -9.14)    3.12                 4
 09/11/2015   08:56:56   (  78.56, -63.11) 09/11/2015   08:56:10  (  78.55, -63.17)    1.42                46
 09/11/2015   09:46:14   ( -78.95, 106.70) 09/11/2015   09:46:45  ( -78.94, 106.61)    2.18                31
 09/14/2015   01:13:15   (  78.77,  53.93) 09/14/2015   01:12:55  (  78.77,  53.96)    0.80                20