Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2013 9 21.  Predictions up to the next  14.0 days:

     Date     Time(AURA)   AURA Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/21/2013   11:25:19   ( -79.17,  83.25) ( -79.16,  83.14)    2.48                19
 09/24/2013   02:52:23   (  79.05,  30.78) (  79.06,  30.91)    2.87                30
 09/24/2013   03:41:46   ( -79.22,-160.52) ( -79.22,-160.67)    3.18                48
 09/26/2013   19:08:51   (  79.05, 146.63) (  79.04, 146.54)    2.10                 0
 09/26/2013   19:56:14   ( -81.84,  -1.93) ( -81.24,  -1.90)   67.01                73
 09/29/2013   10:35:55   ( -78.96,  94.37) ( -78.97,  94.48)    2.55                49
 09/29/2013   11:25:14   (  79.22, -96.40) (  79.23, -96.33)    1.53                29
 10/02/2013   02:52:19   ( -79.05,-149.25) ( -79.05,-149.17)    1.97                19
 10/02/2013   03:41:38   (  79.30,  19.99) (  79.31,  20.03)    0.96                59
 10/04/2013   18:19:23   (  78.84, 157.82) (  78.86, 157.94)    2.91                66