Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 6 26.  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)
 06/28/2018   19:10:15   ( -75.75, -47.04) 06/28/2018   19:09:01  ( -75.98, -48.22)   40.68                74
 06/28/2018   19:58:16   (  79.50, 137.27) 06/28/2018   19:58:18  (  79.50, 137.31)    0.78                 2
 07/01/2018   11:25:25   ( -79.25,  83.82) 07/01/2018   11:24:36  ( -79.24,  83.69)    3.11                49
 07/01/2018   12:14:44   (  79.50,-106.86) 07/01/2018   12:15:13  (  79.49,-107.01)    3.14                29
 07/04/2018   03:41:49   ( -79.36,-159.55) 07/04/2018   03:41:26  ( -79.36,-159.56)    0.29                23
 07/04/2018   04:31:08   (  79.61,   9.78) 07/04/2018   04:32:03  (  79.61,   9.77)    0.27                55
 07/06/2018   19:08:55   (  79.13, 147.24) 07/06/2018   19:07:42  (  79.13, 147.13)    2.31                73
 07/06/2018   19:58:15   ( -79.43, -43.21) 07/06/2018   19:58:19  ( -79.42, -43.33)    2.85                 4
 07/09/2018   11:25:18   (  79.32, -95.71) 07/09/2018   11:24:31  (  79.32, -95.64)    1.56                47