Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 12 31.  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)
 01/01/2016   09:46:10   ( -79.20, 108.33) 01/01/2016   09:45:29  ( -79.21, 108.41)    1.66                41
 01/01/2016   10:35:29   (  79.47, -82.26) 01/01/2016   10:36:06  (  79.46, -82.29)    0.78                37
 01/04/2016   02:02:34   ( -79.34,-134.89) 01/04/2016   02:02:18  ( -79.34,-134.77)    2.46                16
 01/04/2016   02:51:54   (  79.56,  34.28) 01/04/2016   02:52:56  (  79.56,  34.30)    0.49                62
 01/06/2016   17:29:42   (  79.02, 171.36) 01/06/2016   17:28:35  (  79.02, 171.29)    1.64                67
 01/06/2016   18:19:01   ( -79.35, -18.95) 01/06/2016   18:19:11  ( -79.34, -19.01)    1.26                10
 01/09/2016   09:46:02   (  79.25, -71.34) 01/09/2016   09:45:20  (  79.26, -71.20)    2.92                42
 01/09/2016   10:35:25   ( -79.41,  97.39) 01/09/2016   10:36:01  ( -79.41,  97.25)    3.17                36
 01/12/2016   02:02:25   (  79.38,  45.40) 01/12/2016   02:02:09  (  79.38,  45.54)    2.94                16