Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 6 22.  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)
 06/22/2016   18:19:02   (  79.14, 159.60) 06/22/2016   18:18:05  (  79.15, 159.71)    2.56                57
 06/22/2016   19:08:24   ( -79.34, -31.47) 06/22/2016   19:08:45  ( -79.34, -31.57)    2.09                21
 06/25/2016   10:35:28   (  79.20, -84.15) 06/25/2016   10:34:58  (  79.20, -84.13)    0.49                30
 06/25/2016   11:24:47   ( -79.52,  85.59) 06/25/2016   11:25:34  ( -79.52,  85.70)    2.33                47
 06/28/2016   02:51:54   (  79.25,  32.08) 06/28/2016   02:51:51  (  79.25,  32.03)    0.88                 3
 06/28/2016   03:41:06   ( -79.83,-156.25) 06/28/2016   03:42:20  ( -79.80,-156.13)    4.23                74
 06/30/2016   18:18:59   ( -79.12, -20.52) 06/30/2016   18:18:05  ( -79.13, -20.46)    1.53                54
 06/30/2016   19:08:19   (  79.34, 148.52) 06/30/2016   19:08:43  (  79.34, 148.45)    1.46                24
 07/03/2016   10:35:22   ( -79.24,  96.14) 07/03/2016   10:34:55  ( -79.25,  96.22)    1.71                27
 07/03/2016   11:24:42   (  79.46, -94.80) 07/03/2016   11:25:33  (  79.46, -94.86)    1.29                51
 07/06/2016   02:04:58   (  71.65,  20.35) 07/06/2016   02:03:45  (  71.96,  18.46)   74.08                73