Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 6 15.  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)
 06/18/2018   03:41:54   ( -79.41,-159.24) 06/18/2018   03:41:28  ( -79.42,-159.19)    1.15                26
 06/18/2018   04:31:13   (  79.66,  10.16) 06/18/2018   04:32:05  (  79.66,  10.22)    1.22                52
 06/20/2018   19:11:09   (  73.02, 126.37) 06/20/2018   19:09:56  (  73.33, 124.50)   69.40                73
 06/20/2018   19:58:19   ( -79.51, -42.72) 06/20/2018   19:58:19  ( -79.51, -42.64)    1.72                 0
 06/23/2018   11:25:26   (  79.27, -96.07) 06/23/2018   11:24:36  (  79.26, -96.18)    2.53                50
 06/23/2018   12:14:45   ( -79.59,  73.79) 06/23/2018   12:15:11  ( -79.60,  73.92)    2.74                26
 06/26/2018   03:41:51   (  79.39,  20.63) 06/26/2018   03:41:27  (  79.39,  20.59)    1.12                24
 06/26/2018   04:31:13   ( -79.60,-170.26) 06/26/2018   04:32:06  ( -79.60,-170.36)    2.20                53
 06/28/2018   19:10:17   ( -75.68, -47.27) 06/28/2018   19:09:03  ( -75.90, -48.47)   41.50                74