Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 7 8.  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)
 07/09/2015   08:57:32   (  78.59, -63.03) 07/09/2015   08:57:12  (  78.59, -63.05)    0.50                20
 07/09/2015   09:46:51   ( -78.93, 106.48) 07/09/2015   09:47:49  ( -78.92, 106.34)    3.14                58
 07/12/2015   00:24:41   ( -78.22,-116.66) 07/12/2015   00:23:30  ( -78.21,-116.76)    2.34                71
 07/12/2015   01:13:56   (  78.68,  53.31) 07/12/2015   01:14:02  (  78.67,  53.24)    1.74                 6
 07/14/2015   16:41:03   ( -78.42,   0.20) 07/14/2015   16:40:18  ( -78.41,   0.15)    1.14                45
 07/14/2015   17:30:18   (  78.86, 170.24) 07/14/2015   17:30:50  (  78.86, 170.23)    0.32                32
 07/17/2015   08:57:22   ( -78.72, 117.66) 07/17/2015   08:57:03  ( -78.72, 117.77)    2.71                19
 07/17/2015   09:46:42   (  78.95, -73.39) 07/17/2015   09:47:41  (  78.94, -73.50)    2.49                59
 07/20/2015   00:24:30   (  78.30,  63.73) 07/20/2015   00:23:21  (  78.30,  63.72)    0.35                69