Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 6 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)
 06/02/2018   03:41:56   ( -79.39,-159.36) 06/02/2018   03:41:30  ( -79.39,-159.40)    0.86                26
 06/02/2018   04:31:16   (  79.62,   9.83) 06/02/2018   04:32:08  (  79.61,   9.71)    2.46                52
 06/04/2018   19:58:21   ( -79.55, -42.39) 06/04/2018   19:58:20  ( -79.56, -42.25)    3.07                 1
 06/07/2018   11:25:27   (  79.35, -95.51) 06/07/2018   11:24:35  (  79.35, -95.47)    0.71                52
 06/07/2018   12:14:48   ( -79.60,  73.80) 06/07/2018   12:15:13  ( -79.60,  73.83)    0.61                25
 06/10/2018   03:41:55   (  79.39,  20.64) 06/10/2018   03:41:29  (  79.39,  20.57)    1.54                26
 06/10/2018   04:31:17   ( -79.60,-170.29) 06/10/2018   04:32:08  ( -79.60,-170.38)    1.97                51
 06/12/2018   19:58:20   (  79.55, 137.57) 06/12/2018   19:58:19  (  79.55, 137.70)    2.65                 1
 06/12/2018   20:46:08   ( -81.82, -19.36) 06/12/2018   20:47:21  ( -81.31, -18.95)   57.93                73
 06/15/2018   11:25:30   ( -79.30,  84.14) 06/15/2018   11:24:37  ( -79.30,  84.15)    0.27                53