Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 2 18.  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)
 02/21/2016   02:52:27   (  79.47,  33.59) 02/21/2016   02:52:08  (  79.47,  33.68)    1.96                19
 02/21/2016   03:41:50   ( -79.62,-157.66) 02/21/2016   03:42:49  ( -79.62,-157.79)    2.85                59
 02/23/2016   18:19:34   ( -79.27, -19.46) 02/23/2016   18:18:21  ( -79.28, -19.35)    2.37                73
 02/23/2016   19:08:54   (  79.49, 149.66) 02/23/2016   19:08:59  (  79.49, 149.62)    0.84                 5
 02/26/2016   10:35:58   ( -79.36,  96.99) 02/26/2016   10:35:09  ( -79.37,  97.10)    2.35                49
 02/26/2016   11:25:18   (  79.57, -93.88) 02/26/2016   11:25:47  (  79.57, -93.92)    0.97                29
 02/29/2016   02:52:24   ( -79.38,-146.94) 02/29/2016   02:52:00  ( -79.38,-147.00)    1.35                24
 02/29/2016   03:41:41   (  79.71,  23.00) 02/29/2016   03:42:34  (  79.71,  23.08)    1.58                53
 03/02/2016   18:21:46   (  72.56, 137.89) 03/02/2016   18:20:33  (  72.86, 136.09)   67.87                73
 03/02/2016   19:08:48   ( -79.47, -30.48) 03/02/2016   19:08:49  ( -79.46, -30.59)    2.39                 1