Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2013 3 19.  Predictions up to the next  14.0 days:

     Date     Time(AURA)   AURA Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/21/2013   12:15:09   ( -79.72,  74.82) ( -79.71,  74.80)    0.53                49
 03/21/2013   13:04:31   (  79.86,-116.47) (  79.85,-116.61)    2.70                29
 03/24/2013   04:31:32   ( -79.80,-168.62) ( -79.80,-168.61)    0.20                17
 03/24/2013   05:20:54   (  79.94,   0.09) (  79.94,  -0.01)    1.86                61
 03/26/2013   19:58:32   (  79.71, 138.91) (  79.72, 139.05)    3.00                62
 03/26/2013   20:47:55   ( -79.86, -52.27) ( -79.86, -52.33)    1.15                16
 03/29/2013   12:14:53   (  79.77,-104.71) (  79.77,-104.70)    0.30                28
 03/29/2013   13:04:14   ( -79.99,  64.70) ( -80.00,  64.82)    2.48                49
 04/01/2013   03:41:55   ( -79.60,-157.72) ( -79.59,-157.86)    2.94                71