Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 6 14.  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)
 06/15/2018   11:25:28   ( -79.32,  84.27) 06/15/2018   11:24:36  ( -79.32,  84.32)    1.05                52
 06/15/2018   12:14:47   (  79.58,-106.34) 06/15/2018   12:15:13  (  79.58,-106.30)    0.83                26
 06/18/2018   03:41:53   ( -79.42,-159.19) 06/18/2018   03:41:27  ( -79.42,-159.13)    1.24                26
 06/18/2018   04:31:12   (  79.67,  10.21) 06/18/2018   04:32:04  (  79.67,  10.27)    1.34                52
 06/20/2018   19:11:07   (  73.14, 126.60) 06/20/2018   19:09:54  (  73.44, 124.75)   68.25                73
 06/20/2018   19:58:19   ( -79.51, -42.67) 06/20/2018   19:58:19  ( -79.52, -42.58)    1.94                 0
 06/23/2018   11:25:26   (  79.27, -96.04) 06/23/2018   11:24:36  (  79.26, -96.13)    2.12                50
 06/23/2018   12:14:45   ( -79.60,  73.82) 06/23/2018   12:15:11  ( -79.61,  73.97)    3.16                26
 06/26/2018   03:41:51   (  79.39,  20.65) 06/26/2018   03:41:27  (  79.39,  20.63)    0.45                24
 06/26/2018   04:31:13   ( -79.61,-170.24) 06/26/2018   04:32:06  ( -79.60,-170.31)    1.53                53
 06/28/2018   19:10:09   ( -76.02, -46.24) 06/28/2018   19:08:55  ( -76.23, -47.34)   37.79                74