Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 8 30.  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)
 08/31/2018   19:08:41   ( -79.21, -32.35) 08/31/2018   19:08:08  ( -79.22, -32.26)    2.24                33
 08/31/2018   19:58:02   (  79.40, 136.57) 08/31/2018   19:58:47  (  79.39, 136.43)    3.11                45
 09/03/2018   11:25:08   ( -79.27,  83.95) 09/03/2018   11:25:03  ( -79.28,  83.97)    0.53                 5
 09/03/2018   12:14:26   (  79.58,-106.34) 09/03/2018   12:15:38  (  79.58,-106.25)    1.85                72
 09/06/2018   02:52:14   (  79.09,  31.07) 09/06/2018   02:51:19  (  79.10,  31.13)    1.44                55
 09/06/2018   03:41:33   ( -79.37,-159.51) 09/06/2018   03:41:56  ( -79.37,-159.55)    0.87                23
 09/08/2018   19:08:39   (  79.19, 147.54) 09/08/2018   19:08:12  (  79.19, 147.57)    0.79                27
 09/08/2018   19:58:00   ( -79.43, -43.25) 09/08/2018   19:58:51  ( -79.43, -43.33)    1.70                51
 09/11/2018   10:37:21   ( -74.60,  78.08) 09/11/2018   10:36:07  ( -74.85,  76.75)   47.99                74