Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 2 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)
 02/28/2018   19:58:30   ( -79.76, -40.63) 02/28/2018   19:57:52  ( -79.76, -40.55)    1.57                38
 02/28/2018   20:47:51   (  79.93, 128.35) 02/28/2018   20:48:31  (  79.93, 128.37)    0.50                40
 03/03/2018   12:14:58   ( -79.82,  75.74) 03/03/2018   12:14:43  ( -79.82,  75.78)    0.80                15
 03/03/2018   13:04:19   (  79.98,-115.28) 03/03/2018   13:05:22  (  79.98,-115.30)    0.41                63
 03/06/2018   03:42:04   (  79.64,  22.67) 03/06/2018   03:40:55  (  79.64,  22.67)    0.05                69
 03/06/2018   04:31:26   ( -79.84,-168.20) 03/06/2018   04:31:34  ( -79.84,-168.19)    0.37                 8
 03/08/2018   19:58:32   (  79.70, 138.97) 03/08/2018   19:57:46  (  79.70, 138.94)    0.43                46
 03/08/2018   20:47:53   ( -79.93, -51.59) 03/08/2018   20:48:24  ( -79.93, -51.58)    0.27                31
 03/11/2018   12:14:59   (  79.79,-104.47) 03/11/2018   12:14:36  (  79.78,-104.50)    0.61                23