Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 3 12.  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)
 03/14/2018   03:42:07   ( -79.57,-157.98) 03/14/2018   03:41:09  ( -79.57,-158.00)    0.52                58
 03/14/2018   04:31:28   (  79.75,  10.94) 03/14/2018   04:31:48  (  79.74,  10.85)    1.88                20
 03/16/2018   19:58:34   ( -79.65, -41.55) 03/16/2018   19:58:03  ( -79.65, -41.55)    0.06                31
 03/16/2018   20:47:54   (  79.85, 127.66) 03/16/2018   20:48:41  (  79.85, 127.58)    1.70                47
 03/19/2018   12:15:00   ( -79.76,  75.13) 03/19/2018   12:14:56  ( -79.76,  75.17)    0.88                 4
 03/19/2018   13:04:13   (  80.20,-113.58) 03/19/2018   13:05:27  (  80.15,-113.56)    5.36                74
 03/22/2018   03:42:06   (  79.58,  22.12) 03/22/2018   03:41:12  (  79.59,  22.13)    0.38                54
 03/22/2018   04:31:27   ( -79.82,-168.49) 03/22/2018   04:31:50  ( -79.83,-168.38)    2.26                23
 03/24/2018   19:58:31   (  79.68, 138.72) 03/24/2018   19:58:04  (  79.69, 138.81)    1.85                27