Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 6 9.  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)
 06/10/2018   03:41:54   (  79.42,  20.81) 06/10/2018   03:41:28  (  79.42,  20.87)    1.26                26
 06/10/2018   04:31:15   ( -79.65,-169.90) 06/10/2018   04:32:06  ( -79.66,-169.85)    1.07                51
 06/12/2018   19:58:20   (  79.52, 137.39) 06/12/2018   19:58:20  (  79.52, 137.44)    0.95                 0
 06/12/2018   20:45:23   ( -81.58,  -0.78) 06/12/2018   20:46:36  ( -80.85,  -1.99)   83.99                73
 06/15/2018   11:25:28   ( -79.33,  84.34) 06/15/2018   11:24:36  ( -79.33,  84.38)    0.93                52
 06/15/2018   12:14:46   (  79.58,-106.31) 06/15/2018   12:15:12  (  79.58,-106.26)    0.93                26
 06/18/2018   03:41:53   ( -79.43,-159.12) 06/18/2018   03:41:27  ( -79.43,-159.07)    1.04                26
 06/18/2018   04:31:12   (  79.67,  10.25) 06/18/2018   04:32:04  (  79.68,  10.32)    1.32                52
 06/20/2018   19:11:10   (  72.99, 126.31) 06/20/2018   19:09:57  (  73.30, 124.43)   69.71                73
 06/20/2018   19:58:20   ( -79.49, -42.85) 06/20/2018   19:58:20  ( -79.49, -42.78)    1.55                 0
 06/23/2018   11:25:27   (  79.25, -96.21) 06/23/2018   11:24:37  (  79.24, -96.33)    2.70                50