Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 6 17.  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   03:41:53   ( -79.43,-159.14) 06/18/2018   03:41:27  ( -79.43,-159.09)    1.16                26
 06/18/2018   04:31:13   (  79.64,  10.01) 06/18/2018   04:32:05  (  79.65,  10.06)    1.16                52
 06/20/2018   19:11:10   (  72.99, 126.31) 06/20/2018   19:09:57  (  73.30, 124.43)   69.69                73
 06/20/2018   19:58:19   ( -79.52, -42.62) 06/20/2018   19:58:19  ( -79.52, -42.53)    1.72                 0
 06/23/2018   11:25:27   (  79.24, -96.21) 06/23/2018   11:24:37  (  79.24, -96.33)    2.60                50
 06/23/2018   12:14:45   ( -79.61,  73.89) 06/23/2018   12:15:11  ( -79.62,  74.02)    2.75                26
 06/26/2018   03:41:51   (  79.37,  20.48) 06/26/2018   03:41:27  (  79.37,  20.43)    1.09                24
 06/26/2018   04:31:13   ( -79.58,-170.42) 06/26/2018   04:32:06  ( -79.58,-170.53)    2.18                53
 06/28/2018   19:10:16   ( -75.69, -47.21) 06/28/2018   19:09:02  ( -75.92, -48.41)   41.30                74
 06/28/2018   19:58:16   (  79.49, 137.17) 06/28/2018   19:58:18  (  79.49, 137.21)    0.83                 2
 07/01/2018   11:25:22   ( -79.36,  84.54) 07/01/2018   11:24:32  ( -79.37,  84.68)    2.97                50