Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 9 25.  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)
 09/27/2015   08:56:59   (  78.61, -62.87) 09/27/2015   08:55:50  (  78.60, -62.94)    1.67                69
 09/27/2015   09:46:16   ( -79.03, 107.14) 09/27/2015   09:46:24  ( -79.02, 107.08)    1.60                 8
 09/30/2015   01:13:22   (  78.77,  53.89) 09/30/2015   01:12:36  (  78.77,  53.87)    0.38                46
 09/30/2015   02:02:40   ( -79.14,-136.27) 09/30/2015   02:03:11  ( -79.14,-136.28)    0.28                31
 10/02/2015   17:29:47   (  78.83, 170.13) 10/02/2015   17:29:22  (  78.82, 170.01)    2.82                25
 10/02/2015   18:19:05   ( -79.20, -20.00) 10/02/2015   18:19:57  ( -79.20, -20.11)    2.57                52
 10/05/2015   09:46:10   (  78.92, -73.46) 10/05/2015   09:46:03  (  78.91, -73.59)    2.91                 7
 10/05/2015   10:35:28   ( -79.29,  96.46) 10/05/2015   10:36:38  ( -79.28,  96.34)    2.55                70
 10/08/2015   01:13:18   ( -78.60,-126.97) 10/08/2015   01:12:09  ( -78.60,-127.09)    2.79                69