Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 9 1.  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)
 09/03/2018   11:25:07   ( -79.30,  84.13) 09/03/2018   11:25:02  ( -79.30,  84.15)    0.40                 5
 09/03/2018   12:14:26   (  79.57,-106.39) 09/03/2018   12:15:38  (  79.57,-106.32)    1.58                72
 09/06/2018   02:52:14   (  79.09,  31.03) 09/06/2018   02:51:19  (  79.09,  31.06)    0.77                55
 09/06/2018   03:41:35   ( -79.33,-159.82) 09/06/2018   03:41:58  ( -79.33,-159.89)    1.45                23
 09/08/2018   19:08:40   (  79.19, 147.52) 09/08/2018   19:08:13  (  79.18, 147.50)    0.54                27
 09/08/2018   19:58:01   ( -79.43, -43.29) 09/08/2018   19:58:52  ( -79.41, -43.42)    2.95                51
 09/11/2018   10:37:37   ( -73.78,  76.17) 09/11/2018   10:36:24  ( -74.01,  74.53)   56.62                73
 09/11/2018   11:25:06   (  79.24, -96.25) 09/11/2018   11:25:07  (  79.24, -96.32)    1.53                 1
 09/14/2018   02:52:12   ( -79.11,-148.86) 09/14/2018   02:51:23  ( -79.11,-148.78)    1.78                49