Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 1 26.  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)
 01/27/2018   19:58:25   ( -79.71, -41.04) 01/27/2018   19:58:19  ( -79.71, -41.15)    2.37                 6
 01/27/2018   20:47:44   (  79.96, 128.57) 01/27/2018   20:48:55  (  79.97, 128.66)    1.92                71
 01/30/2018   11:25:30   (  79.58, -93.74) 01/30/2018   11:24:30  (  79.58, -93.78)    0.88                60
 01/30/2018   12:14:51   ( -79.81,  75.59) 01/30/2018   12:15:08  ( -79.81,  75.58)    0.18                17
 02/02/2018   03:41:56   (  79.71,  23.09) 02/02/2018   03:41:19  (  79.72,  23.19)    1.99                37
 02/02/2018   04:31:18   ( -79.90,-167.80) 02/02/2018   04:31:58  ( -79.91,-167.69)    2.52                40
 02/04/2018   19:58:25   (  79.73, 139.09) 02/04/2018   19:58:12  (  79.72, 139.03)    1.21                13
 02/04/2018   20:47:47   ( -79.92, -51.78) 02/04/2018   20:48:51  ( -79.92, -51.83)    0.96                64
 02/07/2018   11:25:34   ( -79.53,  85.89) 02/07/2018   11:24:27  ( -79.52,  85.75)    2.97                67