Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2014 12 14.  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   ( -77.62, -94.51) 12/15/2014   22:45:56  ( -77.62, -94.52)    0.11                 6
 12/15/2014   23:35:15   (  78.18,  75.64) 12/15/2014   23:36:27  (  78.17,  75.55)    2.33                72
 12/18/2014   14:15:03   (  72.38,-160.77) 12/18/2014   14:13:49  (  72.52,-161.45)   28.17                74
 12/18/2014   15:02:40   ( -77.89,  22.48) 12/18/2014   15:02:40  ( -77.90,  22.59)    2.66                 0
 12/18/2014   15:48:51   (  81.36,-102.10) 12/18/2014   15:50:04  (  80.76,-103.40)   70.02                73
 12/21/2014   06:32:06   (  71.78, -46.05) 12/21/2014   06:30:53  (  71.88, -46.91)   32.43                73
 12/21/2014   07:19:34   ( -77.80, 137.84) 12/21/2014   07:19:34  ( -77.80, 137.87)    0.69                 0
 12/21/2014   08:06:05   (  81.69,   4.82) 12/21/2014   08:07:18  (  81.15,   4.22)   61.88                73
 12/23/2014   23:36:34   ( -77.74,-106.66) 12/23/2014   23:36:27  ( -77.74,-106.66)    0.06                 7
 12/24/2014   00:25:44   (  78.43,  64.25) 12/24/2014   00:26:54  (  78.43,  64.32)    1.48                70
 12/26/2014   15:53:40   ( -77.71,   8.95) 12/26/2014   15:53:19  ( -77.71,   8.98)    0.76                21