Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 7 5.  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)
 07/06/2018   19:11:32   (  71.68, 123.92) 07/06/2018   19:10:19  (  72.04, 121.85)   81.66                73
 07/06/2018   19:58:18   ( -79.46, -43.02) 07/06/2018   19:58:18  ( -79.46, -43.01)    0.27                 0
 07/09/2018   11:25:23   (  79.33, -95.68) 07/09/2018   11:24:31  (  79.33, -95.56)    2.85                52
 07/09/2018   12:14:43   ( -79.57,  73.63) 07/09/2018   12:15:08  ( -79.58,  73.75)    2.78                25
 07/12/2018   03:41:50   (  79.36,  20.40) 07/12/2018   03:41:24  (  79.35,  20.36)    1.12                26
 07/12/2018   04:31:11   ( -79.60,-170.27) 07/12/2018   04:32:02  ( -79.60,-170.31)    0.93                51
 07/14/2018   19:58:16   (  79.46, 136.99) 07/14/2018   19:58:15  (  79.47, 137.06)    1.52                 1
 07/14/2018   20:46:03   ( -81.82, -19.88) 07/14/2018   20:47:16  ( -81.31, -19.44)   57.13                73
 07/17/2018   11:25:25   ( -79.24,  83.75) 07/17/2018   11:24:32  ( -79.24,  83.73)    0.37                53