Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 7 22.  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)
 07/22/2015   16:40:53   (  78.40,-179.88) 07/22/2015   16:40:11  (  78.39,-179.99)    2.69                42
 07/22/2015   17:30:07   ( -78.94,  -9.26) 07/22/2015   17:30:42  ( -78.95,  -9.22)    1.01                35
 07/25/2015   08:57:14   (  78.59, -63.01) 07/25/2015   08:56:59  (  78.58, -63.09)    1.85                15
 07/25/2015   09:46:29   ( -79.09, 107.48) 07/25/2015   09:47:31  ( -79.09, 107.55)    1.73                62
 07/28/2015   00:24:20   ( -78.31,-116.14) 07/28/2015   00:23:15  ( -78.31,-116.19)    1.22                65
 07/28/2015   01:13:34   (  78.81,  54.08) 07/28/2015   01:13:46  (  78.81,  54.09)    0.05                12
 07/30/2015   16:40:39   ( -78.58,   1.09) 07/30/2015   16:40:01  ( -78.58,   1.14)    1.23                38
 07/30/2015   17:29:54   (  79.01, 171.18) 07/30/2015   17:30:33  (  79.02, 171.30)    2.90                39
 08/02/2015   08:57:01   ( -78.66, 117.42) 08/02/2015   08:56:51  ( -78.65, 117.35)    1.56                10
 08/02/2015   09:46:16   (  79.09, -72.47) 08/02/2015   09:47:23  (  79.09, -72.45)    0.49                67
 08/05/2015   00:24:03   (  78.46,  64.62) 08/05/2015   00:23:03  (  78.46,  64.64)    0.58                60