Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 3 5.  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)
 03/06/2018   03:42:05   (  79.62,  22.44) 03/06/2018   03:41:04  (  79.62,  22.44)    0.27                61
 03/06/2018   04:31:27   ( -79.82,-168.46) 03/06/2018   04:31:43  ( -79.82,-168.46)    0.21                16
 03/08/2018   19:58:32   (  79.67, 138.67) 03/08/2018   19:57:58  (  79.67, 138.62)    0.87                34
 03/08/2018   20:47:53   ( -79.90, -51.93) 03/08/2018   20:48:36  ( -79.90, -51.95)    0.46                43
 03/11/2018   12:14:59   (  79.75,-104.86) 03/11/2018   12:14:52  (  79.74,-104.92)    1.24                 7
 03/11/2018   13:04:21   ( -79.94,  64.30) 03/11/2018   13:05:31  ( -79.94,  64.27)    0.58                70
 03/14/2018   03:42:06   ( -79.62,-157.58) 03/14/2018   03:41:08  ( -79.62,-157.58)    0.25                58
 03/14/2018   04:31:26   (  79.82,  11.60) 03/14/2018   04:31:46  (  79.82,  11.54)    1.22                20
 03/16/2018   19:58:32   ( -79.73, -40.89) 03/16/2018   19:58:01  ( -79.73, -40.85)    0.83                31
 03/16/2018   20:47:53   (  79.89, 128.03) 03/16/2018   20:48:40  (  79.89, 127.99)    0.82                47
 03/19/2018   12:14:57   ( -79.83,  75.78) 03/19/2018   12:14:53  ( -79.83,  75.88)    1.95                 4