Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2013 12 12.  Predictions up to the next  14.0 days:

     Date     Time(AURA)   AURA Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/13/2013   02:03:14   ( -78.57,-139.47) ( -78.57,-139.51)    0.97                45
 12/13/2013   02:52:32   (  78.90,  29.97) (  78.89,  29.86)    2.45                33
 12/15/2013   18:19:36   ( -78.77, -22.50) ( -78.78, -22.44)    1.63                13
 12/15/2013   19:08:54   (  79.09, 146.99) (  79.09, 147.01)    0.46                65
 12/18/2013   09:46:42   (  78.45, -75.96) (  78.44, -76.06)    2.52                56
 12/18/2013   10:36:00   ( -78.83,  93.76) ( -78.83,  93.68)    1.72                21
 12/21/2013   02:03:01   (  78.68,  41.14) (  78.68,  41.17)    0.78                22
 12/21/2013   02:52:19   ( -79.05,-149.06) ( -79.06,-148.99)    1.70                55
 12/23/2013   17:30:04   ( -78.40, -12.03) ( -78.40, -12.07)    0.95                64