Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 6 24.  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   ( -79.22, -32.23) 06/25/2017   19:07:36  ( -79.22, -32.19)    1.12                50
 06/25/2017   19:57:45   (  79.48, 137.13) 06/25/2017   19:58:13  (  79.48, 137.12)    0.39                28
 06/28/2017   11:24:54   ( -79.26,  83.91) 06/28/2017   11:24:30  ( -79.25,  83.80)    2.49                24
 06/28/2017   12:14:11   (  79.59,-106.20) 06/28/2017   12:15:04  (  79.60,-106.09)    2.53                53
 07/01/2017   02:53:34   (  74.72,  14.28) 07/01/2017   02:52:21  (  74.94,  12.82)   49.20                73
 07/01/2017   03:41:19   ( -79.41,-159.21) 07/01/2017   03:41:20  ( -79.42,-159.17)    0.82                 1
 07/03/2017   19:08:26   (  79.15, 147.34) 07/03/2017   19:07:36  (  79.15, 147.24)    2.18                50
 07/03/2017   19:57:46   ( -79.45, -43.11) 07/03/2017   19:58:13  ( -79.44, -43.19)    1.74                27
 07/06/2017   11:24:50   (  79.34, -95.61) 07/06/2017   11:24:25  (  79.34, -95.51)    2.03                25