Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 9 6.  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)
 09/08/2016   02:51:42   ( -79.21,-148.20) 09/08/2016   02:51:17  ( -79.21,-148.16)    0.77                25
 09/08/2016   03:41:02   (  79.44,  20.94) 09/08/2016   03:41:55  (  79.43,  20.86)    1.73                53
 09/10/2016   19:08:08   ( -79.29, -31.82) 09/10/2016   19:08:07  ( -79.29, -31.80)    0.40                 1
 09/10/2016   19:55:15   (  81.72,-172.93) 09/10/2016   19:56:28  (  81.06,-173.74)   74.16                73
 09/13/2016   10:35:15   (  79.07, -84.93) 09/13/2016   10:34:21  (  79.07, -84.92)    0.35                54
 09/13/2016   11:24:34   ( -79.39,  84.77) 09/13/2016   11:24:57  ( -79.40,  84.82)    1.05                23
 09/16/2016   02:51:40   (  79.21,  31.81) 09/16/2016   02:51:10  (  79.21,  31.90)    2.06                30
 09/16/2016   03:41:00   ( -79.49,-158.69) 09/16/2016   03:41:47  ( -79.50,-158.56)    2.69                47
 09/18/2016   19:08:08   (  79.22, 147.77) 09/18/2016   19:08:03  (  79.22, 147.70)    1.61                 5