Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 2 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)
 02/18/2018   03:41:59   (  79.69,  22.99) 02/18/2018   03:41:08  (  79.69,  23.05)    1.05                51
 02/18/2018   04:31:21   ( -79.88,-167.91) 02/18/2018   04:31:47  ( -79.88,-167.87)    0.77                26
 02/20/2018   19:58:28   (  79.69, 138.90) 02/20/2018   19:58:00  (  79.69, 138.83)    1.38                28
 02/20/2018   20:47:49   ( -79.92, -51.70) 02/20/2018   20:48:38  ( -79.92, -51.78)    1.65                49
 02/23/2018   12:14:54   (  79.84,-104.12) 02/23/2018   12:14:48  (  79.85,-103.97)    3.08                 6
 02/23/2018   13:04:16   ( -80.03,  65.06) 02/23/2018   13:05:27  ( -80.03,  65.20)    2.82                71
 02/26/2018   03:42:02   ( -79.70,-156.91) 02/26/2018   03:41:01  ( -79.71,-156.80)    2.37                61
 02/26/2018   04:31:23   (  79.87,  12.01) 02/26/2018   04:31:40  (  79.88,  12.08)    1.51                17
 02/28/2018   19:58:31   ( -79.73, -40.80) 02/28/2018   19:57:53  ( -79.74, -40.75)    1.21                38
 02/28/2018   20:47:51   (  79.93, 128.40) 02/28/2018   20:48:31  (  79.93, 128.42)    0.29                40
 03/03/2018   12:14:58   ( -79.80,  75.56) 03/03/2018   12:14:43  ( -79.80,  75.58)    0.50                15