Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 7 19.  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)
 07/20/2018   03:41:51   ( -79.29,-160.05) 07/20/2018   03:41:27  ( -79.28,-160.19)    3.12                24
 07/20/2018   04:31:08   (  79.62,   9.89) 07/20/2018   04:32:01  (  79.63,   9.95)    1.28                53
 07/22/2018   19:08:56   (  79.14, 147.24) 07/22/2018   19:07:43  (  79.13, 147.17)    1.47                73
 07/22/2018   19:58:15   ( -79.46, -43.03) 07/22/2018   19:58:19  ( -79.46, -43.01)    0.36                 4
 07/25/2018   11:25:20   (  79.31, -95.81) 07/25/2018   11:24:35  (  79.31, -95.71)    2.10                45
 07/25/2018   12:14:42   ( -79.51,  73.21) 07/25/2018   12:15:15  ( -79.50,  73.11)    2.12                33
 07/28/2018   03:41:47   (  79.35,  20.39) 07/28/2018   03:41:31  (  79.35,  20.37)    0.35                16
 07/28/2018   04:31:07   ( -79.63,-170.05) 07/28/2018   04:32:08  ( -79.64,-169.95)    2.29                61
 07/30/2018   19:08:52   ( -79.22, -32.27) 07/30/2018   19:07:47  ( -79.22, -32.21)    1.12                65
 07/30/2018   19:58:12   (  79.44, 136.81) 07/30/2018   19:58:25  (  79.43, 136.71)    2.25                13
 08/02/2018   11:25:18   ( -79.30,  84.13) 08/02/2018   11:24:42  ( -79.29,  84.12)    0.12                36