Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 3 13.  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   03:42:08   ( -79.57,-158.03) 03/14/2018   03:41:10  ( -79.56,-158.05)    0.49                58
 03/14/2018   04:31:28   (  79.78,  11.17) 03/14/2018   04:31:48  (  79.77,  11.08)    1.88                20
 03/16/2018   19:58:34   ( -79.64, -41.61) 03/16/2018   19:58:03  ( -79.64, -41.61)    0.18                31
 03/16/2018   20:47:54   (  79.85, 127.60) 03/16/2018   20:48:41  (  79.84, 127.53)    1.57                47
 03/19/2018   12:15:00   ( -79.75,  75.06) 03/19/2018   12:14:56  ( -79.75,  75.11)    1.16                 4
 03/19/2018   13:04:11   (  80.25,-113.05) 03/19/2018   13:05:25  (  80.20,-113.00)    6.36                74
 03/22/2018   03:42:05   (  79.61,  22.31) 03/22/2018   03:41:11  (  79.61,  22.36)    1.00                54
 03/22/2018   04:31:26   ( -79.85,-168.29) 03/22/2018   04:31:49  ( -79.85,-168.15)    2.86                23
 03/24/2018   19:58:31   (  79.71, 138.91) 03/24/2018   19:58:04  (  79.72, 139.05)    2.87                27