Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 6 25.  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)
 06/25/2017   19:08:26   ( -79.23, -32.19) 06/25/2017   19:07:36  ( -79.23, -32.14)    1.14                50
 06/25/2017   19:57:45   (  79.49, 137.19) 06/25/2017   19:58:13  (  79.49, 137.17)    0.43                28
 06/28/2017   11:24:54   ( -79.27,  83.96) 06/28/2017   11:24:30  ( -79.26,  83.85)    2.50                24
 06/28/2017   12:14:11   (  79.60,-106.15) 06/28/2017   12:15:04  (  79.61,-106.03)    2.46                53
 07/01/2017   02:53:34   (  74.68,  14.18) 07/01/2017   02:52:21  (  74.90,  12.71)   49.60                73
 07/01/2017   03:41:18   ( -79.42,-159.16) 07/01/2017   03:41:19  ( -79.42,-159.12)    0.77                 1
 07/03/2017   19:08:26   (  79.16, 147.40) 07/03/2017   19:07:36  (  79.15, 147.29)    2.40                50
 07/03/2017   19:57:46   ( -79.45, -43.06) 07/03/2017   19:58:13  ( -79.45, -43.14)    1.94                27
 07/06/2017   11:24:50   (  79.34, -95.55) 07/06/2017   11:24:25  (  79.35, -95.47)    1.71                25
 07/06/2017   12:14:11   ( -79.60,  73.81) 07/06/2017   12:15:03  ( -79.60,  73.92)    2.30                52
 07/09/2017   02:53:59   ( -73.45,-168.64) 07/09/2017   02:52:46  ( -73.70,-170.38)   61.59                73
 07/09/2017   03:41:18   (  79.37,  20.48) 07/09/2017   03:41:19  (  79.37,  20.47)    0.24                 1