Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 7 15.  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)
 07/16/2016   18:19:00   ( -79.07, -20.84) 07/16/2016   18:18:01  ( -79.07, -20.83)    0.15                59
 07/16/2016   19:08:17   (  79.41, 149.00) 07/16/2016   19:08:35  (  79.42, 149.10)    2.25                18
 07/19/2016   10:35:24   ( -79.18,  95.71) 07/19/2016   10:34:51  ( -79.18,  95.74)    0.58                33
 07/19/2016   11:24:41   (  79.52, -94.43) 07/19/2016   11:25:25  (  79.52, -94.29)    2.95                44
 07/22/2016   02:51:48   ( -79.32,-147.52) 07/22/2016   02:51:41  ( -79.32,-147.42)    2.12                 7
 07/22/2016   03:41:09   (  79.50,  21.32) 07/22/2016   03:42:20  (  79.49,  21.23)    1.82                71
 07/24/2016   18:18:53   (  79.12, 159.45) 07/24/2016   18:17:55  (  79.12, 159.53)    1.70                58
 07/24/2016   19:08:15   ( -79.33, -31.55) 07/24/2016   19:08:35  ( -79.32, -31.63)    1.75                20
 07/27/2016   10:35:19   (  79.16, -84.40) 07/27/2016   10:34:48  (  79.15, -84.46)    1.30                31