Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2014 12 13.  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)
 12/15/2014   22:46:02   ( -77.71, -94.14) 12/15/2014   22:45:53  ( -77.71, -94.08)    1.38                 9
 12/15/2014   23:35:17   (  78.19,  75.67) 12/15/2014   23:36:26  (  78.18,  75.59)    1.91                69
 12/18/2014   15:02:50   ( -77.78,  21.96) 12/18/2014   15:02:43  ( -77.79,  22.03)    1.69                 7
 12/18/2014   15:52:06   (  78.21,-168.40) 12/18/2014   15:53:17  (  78.21,-168.50)    2.40                71
 12/21/2014   07:19:54   ( -77.52, 136.63) 12/21/2014   07:19:41  ( -77.52, 136.53)    2.42                13
 12/21/2014   08:09:04   (  78.23, -52.56) 12/21/2014   08:10:08  (  78.23, -52.62)    1.39                64
 12/23/2014   23:36:59   ( -77.61,-107.28) 12/23/2014   23:36:30  ( -77.62,-107.23)    1.08                29
 12/24/2014   00:26:10   (  78.28,  63.40) 12/24/2014   00:26:58  (  78.28,  63.45)    1.19                48
 12/26/2014   15:54:19   ( -77.37,   7.42) 12/26/2014   15:53:26  ( -77.37,   7.43)    0.32                53