Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 3 11.  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)
 03/11/2018   12:15:01   (  79.68,-105.46) 03/11/2018   12:14:54  (  79.67,-105.54)    1.56                 7
 03/11/2018   13:04:22   ( -79.91,  63.93) 03/11/2018   13:05:32  ( -79.90,  63.89)    0.90                70
 03/14/2018   03:42:08   ( -79.54,-158.18) 03/14/2018   03:41:10  ( -79.55,-158.21)    0.49                58
 03/14/2018   04:31:28   (  79.75,  10.99) 03/14/2018   04:31:48  (  79.75,  10.90)    1.79                20
 03/16/2018   19:58:34   ( -79.66, -41.50) 03/16/2018   19:58:03  ( -79.66, -41.49)    0.10                31
 03/16/2018   20:47:55   (  79.83, 127.42) 03/16/2018   20:48:42  (  79.82, 127.35)    1.54                47
 03/19/2018   12:15:00   ( -79.76,  75.17) 03/19/2018   12:14:56  ( -79.76,  75.23)    1.12                 4
 03/19/2018   13:04:12   (  80.23,-113.24) 03/19/2018   13:05:26  (  80.18,-113.20)    5.98                74
 03/22/2018   03:42:05   (  79.59,  22.14) 03/22/2018   03:41:11  (  79.59,  22.17)    0.78                54
 03/22/2018   04:31:26   ( -79.82,-168.46) 03/22/2018   04:31:49  ( -79.83,-168.34)    2.65                23
 03/24/2018   19:58:30   (  79.72, 139.00) 03/24/2018   19:58:03  (  79.73, 139.12)    2.44                27