Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2013 12 27.  Predictions up to the next  14.0 days:

     Date     Time(AURA)   AURA Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/29/2013   02:03:18   ( -78.64,-139.12) ( -78.63,-139.11)    0.26                27
 12/29/2013   02:52:36   (  78.96,  30.35) (  78.96,  30.31)    0.97                51
 12/31/2013   17:32:52   (  71.20, 147.83) (  71.47, 146.16)   66.46                73
 12/31/2013   18:19:47   ( -78.73, -22.71) ( -78.74, -22.69)    0.63                 0
 01/03/2014   09:46:56   (  78.45, -75.97) (  78.45, -76.02)    1.07                49
 01/03/2014   10:36:15   ( -78.80,  93.54) ( -78.80,  93.48)    1.23                28
 01/06/2014   02:03:22   (  78.62,  40.77) (  78.62,  40.81)    0.93                21
 01/06/2014   02:52:41   ( -78.96,-149.66) ( -78.97,-149.62)    1.06                56
 01/08/2014   17:30:31   ( -78.39, -12.20) ( -78.39, -12.11)    2.05                70