Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 1 23.  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)
 01/25/2016   10:35:49   ( -79.35,  96.94) 01/25/2016   10:35:48  ( -79.35,  96.85)    1.80                 1
 01/25/2016   11:23:08   (  81.78, -48.92) 01/25/2016   11:24:21  (  81.20, -49.31)   64.74                73
 01/28/2016   02:02:59   (  79.15,  43.86) 01/28/2016   02:02:01  (  79.15,  43.84)    0.47                58
 01/28/2016   02:52:18   ( -79.47,-146.40) 01/28/2016   02:52:37  ( -79.47,-146.44)    0.99                19
 01/30/2016   18:19:25   (  79.33, 160.91) 01/30/2016   18:18:47  (  79.34, 161.02)    2.17                38
 01/30/2016   19:08:46   ( -79.57, -29.80) 01/30/2016   19:09:25  ( -79.58, -29.72)    1.72                39
 02/02/2016   10:35:56   (  79.35, -83.12) 02/02/2016   10:35:39  (  79.35, -83.12)    0.30                17
 02/02/2016   11:25:16   ( -79.63,  86.45) 02/02/2016   11:26:16  ( -79.63,  86.45)    0.13                60
 02/05/2016   02:03:06   ( -79.17,-136.05) 02/05/2016   02:01:52  ( -79.17,-135.98)    1.78                74