Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 6 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)
 06/25/2016   10:35:29   (  79.19, -84.23) 06/25/2016   10:34:59  (  79.19, -84.21)    0.50                30
 06/25/2016   11:24:48   ( -79.51,  85.50) 06/25/2016   11:25:35  ( -79.51,  85.61)    2.49                47
 06/28/2016   02:51:53   (  79.28,  32.24) 06/28/2016   02:51:50  (  79.28,  32.21)    0.77                 3
 06/28/2016   03:41:04   ( -79.89,-155.79) 06/28/2016   03:42:18  ( -79.85,-155.65)    5.14                74
 06/30/2016   18:18:58   ( -79.14, -20.37) 06/30/2016   18:18:04  ( -79.15, -20.29)    1.89                54
 06/30/2016   19:08:18   (  79.37, 148.69) 06/30/2016   19:08:42  (  79.36, 148.63)    1.23                24
 07/03/2016   10:35:23   ( -79.23,  96.04) 07/03/2016   10:34:56  ( -79.24,  96.13)    2.22                27
 07/03/2016   11:24:43   (  79.45, -94.90) 07/03/2016   11:25:34  (  79.44, -94.94)    0.95                51
 07/06/2016   02:04:53   (  71.95,  20.86) 07/06/2016   02:03:40  (  72.25,  19.02)   71.39                73
 07/06/2016   02:51:50   ( -79.23,-148.08) 07/06/2016   02:51:51  ( -79.22,-148.22)    3.03                 1