Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 12 2.  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)
 12/03/2015   01:13:15   (  79.00,  55.29) 12/03/2015   01:12:02  (  79.00,  55.41)    2.68                73
 12/03/2015   02:02:36   ( -79.24,-135.56) 12/03/2015   02:02:41  ( -79.24,-135.57)    0.20                 5
 12/05/2015   17:29:41   (  79.08, 171.64) 12/05/2015   17:28:54  (  79.08, 171.68)    0.86                47
 12/05/2015   18:19:02   ( -79.32, -19.17) 12/05/2015   18:19:33  ( -79.31, -19.27)    2.10                31
 12/08/2015   09:46:05   (  79.21, -71.61) 12/08/2015   09:45:44  (  79.22, -71.55)    1.17                21
 12/08/2015   10:35:27   ( -79.42,  97.37) 12/08/2015   10:36:24  ( -79.41,  97.27)    1.98                57
 12/11/2015   01:13:12   ( -78.99,-124.72) 12/11/2015   01:12:00  ( -79.00,-124.66)    1.47                72
 12/11/2015   02:02:32   (  79.22,  44.31) 12/11/2015   02:02:38  (  79.21,  44.18)    2.75                 6
 12/13/2015   17:29:36   ( -79.06,  -8.42) 12/13/2015   17:28:51  ( -79.06,  -8.45)    0.68                45