Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 1 13.  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)
 01/14/2016   18:19:07   (  79.38, 161.27) 01/14/2016   18:19:02  (  79.38, 161.30)    0.63                 5
 01/14/2016   19:08:28   ( -79.61, -29.48) 01/14/2016   19:09:40  ( -79.62, -29.46)    0.55                72
 01/17/2016   09:46:19   ( -79.11, 107.77) 01/17/2016   09:45:18  ( -79.11, 107.72)    1.20                61
 01/17/2016   10:35:38   (  79.38, -82.87) 01/17/2016   10:35:55  (  79.37, -83.00)    2.89                17
 01/20/2016   02:02:48   ( -79.18,-135.95) 01/20/2016   02:02:09  ( -79.17,-136.08)    2.78                39
 01/20/2016   02:52:04   (  79.55,  34.20) 01/20/2016   02:52:42  (  79.56,  34.30)    2.07                38
 01/22/2016   18:19:15   ( -79.26, -19.52) 01/22/2016   18:18:58  ( -79.26, -19.62)    2.27                17
 01/22/2016   19:08:31   (  79.63, 150.67) 01/22/2016   19:09:31  (  79.64, 150.79)    2.75                60
 01/25/2016   09:46:21   (  79.12, -72.16) 01/25/2016   09:45:09  (  79.13, -72.13)    0.75                72