Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 9 14.  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)
 09/16/2016   02:51:41   (  79.16,  31.53) 09/16/2016   02:51:16  (  79.16,  31.46)    1.61                25
 09/16/2016   03:41:01   ( -79.44,-159.02) 09/16/2016   03:41:53  ( -79.44,-159.06)    0.89                52
 09/18/2016   18:18:47   ( -79.03, -21.06) 09/18/2016   18:17:33  ( -79.03, -20.99)    1.53                74
 09/18/2016   19:08:06   (  79.30, 148.26) 09/18/2016   19:08:10  (  79.30, 148.27)    0.32                 4
 09/21/2016   10:35:15   ( -79.04,  94.88) 09/21/2016   10:34:31  ( -79.03,  94.78)    2.14                44
 09/21/2016   11:24:33   (  79.34, -95.55) 09/21/2016   11:25:07  (  79.33, -95.70)    3.17                34
 09/24/2016   02:51:37   ( -79.24,-148.00) 09/24/2016   02:51:22  ( -79.24,-147.93)    1.59                15
 09/24/2016   03:40:56   (  79.50,  21.37) 09/24/2016   03:41:59  (  79.50,  21.40)    0.74                63
 09/26/2016   18:18:43   (  79.02, 158.90) 09/26/2016   18:17:41  (  79.02, 158.88)    0.42                62