Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 7 4.  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)
 07/06/2015   16:41:10   (  78.33, 179.75) 07/06/2015   16:40:25  (  78.32, 179.62)    3.04                45
 07/06/2015   17:30:24   ( -78.89,  -9.65) 07/06/2015   17:30:56  ( -78.89,  -9.64)    0.25                32
 07/09/2015   08:57:34   (  78.50, -63.52) 07/09/2015   08:57:14  (  78.49, -63.63)    2.58                20
 07/09/2015   09:46:49   ( -79.01, 106.94) 07/09/2015   09:47:46  ( -79.01, 106.97)    0.78                57
 07/12/2015   00:24:42   ( -78.24,-116.57) 07/12/2015   00:23:30  ( -78.23,-116.63)    1.54                72
 07/12/2015   01:13:56   (  78.73,  53.62) 07/12/2015   01:14:01  (  78.73,  53.59)    0.80                 5
 07/14/2015   16:41:03   ( -78.51,   0.69) 07/14/2015   16:40:16  ( -78.52,   0.75)    1.43                47
 07/14/2015   17:30:18   (  78.95, 170.75) 07/14/2015   17:30:48  (  78.96, 170.86)    2.39                30
 07/17/2015   08:57:27   ( -78.60, 117.04) 07/17/2015   08:57:06  ( -78.60, 117.02)    0.54                21