Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 9 9.  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)
 09/10/2016   19:08:08   ( -79.30, -31.71) 09/10/2016   19:08:07  ( -79.30, -31.69)    0.47                 1
 09/10/2016   19:55:15   (  81.71,-172.72) 09/10/2016   19:56:28  (  81.05,-173.56)   74.42                73
 09/13/2016   10:35:15   (  79.09, -84.81) 09/13/2016   10:34:21  (  79.09, -84.78)    0.44                54
 09/13/2016   11:24:35   ( -79.37,  84.63) 09/13/2016   11:24:58  ( -79.38,  84.68)    1.14                23
 09/16/2016   02:51:39   (  79.23,  31.96) 09/16/2016   02:51:09  (  79.24,  32.06)    2.23                30
 09/16/2016   03:40:59   ( -79.51,-158.55) 09/16/2016   03:41:46  ( -79.52,-158.41)    2.87                47
 09/18/2016   19:08:07   (  79.25, 147.93) 09/18/2016   19:08:02  (  79.24, 147.87)    1.31                 5
 09/18/2016   19:57:27   ( -79.53, -42.56) 09/18/2016   19:58:39  ( -79.52, -42.59)    0.74                72
 09/21/2016   10:35:16   ( -78.99,  94.58) 09/21/2016   10:34:18  ( -78.98,  94.49)    1.97                58