Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 3 14.  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)
 03/16/2018   19:58:36   ( -79.60, -42.00) 03/16/2018   19:58:05  ( -79.60, -41.99)    0.25                31
 03/16/2018   20:47:56   (  79.81, 127.19) 03/16/2018   20:48:43  (  79.80, 127.14)    1.10                47
 03/19/2018   12:15:01   ( -79.70,  74.66) 03/19/2018   12:14:57  ( -79.71,  74.73)    1.39                 4
 03/19/2018   13:04:10   (  80.28,-112.88) 03/19/2018   13:05:24  (  80.22,-112.79)    7.63                74
 03/22/2018   03:42:07   (  79.53,  21.66) 03/22/2018   03:41:13  (  79.54,  21.72)    1.39                54
 03/22/2018   04:31:27   ( -79.80,-168.69) 03/22/2018   04:31:50  ( -79.81,-168.54)    2.99                23
 03/24/2018   19:58:32   (  79.67, 138.52) 03/24/2018   19:58:05  (  79.67, 138.67)    3.01                27
 03/24/2018   20:47:56   ( -79.79, -52.90) 03/24/2018   20:48:47  ( -79.79, -52.97)    1.37                51
 03/27/2018   11:27:42   ( -73.83,  63.99) 03/27/2018   11:26:29  ( -74.12,  62.08)   66.72                73
 03/27/2018   12:15:01   (  79.65,-105.71) 03/27/2018   12:15:02  (  79.65,-105.78)    1.37                 1