Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 6 19.  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)
 06/20/2016   02:51:58   ( -79.31,-147.60) 06/20/2016   02:51:52  ( -79.31,-147.57)    0.61                 6
 06/20/2016   03:41:18   (  79.53,  21.57) 06/20/2016   03:42:30  (  79.53,  21.48)    2.04                72
 06/22/2016   18:19:03   (  79.13, 159.52) 06/22/2016   18:18:06  (  79.14, 159.63)    2.44                57
 06/22/2016   19:08:25   ( -79.33, -31.54) 06/22/2016   19:08:46  ( -79.33, -31.64)    2.22                21
 06/25/2016   10:35:29   (  79.19, -84.24) 06/25/2016   10:34:59  (  79.19, -84.23)    0.17                30
 06/25/2016   11:24:47   ( -79.51,  85.51) 06/25/2016   11:25:34  ( -79.51,  85.61)    1.99                47
 06/28/2016   02:51:53   (  79.28,  32.22) 06/28/2016   02:51:50  (  79.27,  32.16)    1.52                 3
 06/28/2016   03:41:09   ( -79.71,-157.17) 06/28/2016   03:42:23  ( -79.69,-157.11)    2.35                74
 06/30/2016   18:18:59   ( -79.10, -20.63) 06/30/2016   18:18:05  ( -79.10, -20.61)    0.48                54
 06/30/2016   19:08:19   (  79.32, 148.40) 06/30/2016   19:08:43  (  79.32, 148.28)    2.54                24
 07/03/2016   10:35:24   ( -79.18,  95.76) 07/03/2016   10:34:57  ( -79.19,  95.76)    0.24                27