Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2012 9 15.  Predictions up to the next  14.0 days:

     Date     Time(AURA)   AURA Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/15/2012   20:47:00   ( -79.80, -52.97) ( -79.79, -53.11)    3.03                 0
 09/18/2012   12:14:07   (  79.68,-105.64) (  79.68,-105.62)    0.50                55
 09/18/2012   13:03:28   ( -79.90,  63.70) ( -79.91,  63.82)    2.60                22
 09/21/2012   04:30:35   (  79.77,  10.89) (  79.77,  10.99)    1.99                32
 09/21/2012   05:19:58   ( -79.92, 179.70) ( -79.91, 179.60)    2.07                46
 09/23/2012   20:47:04   (  79.80, 127.05) (  79.80, 127.03)    0.35                 8
 09/23/2012   21:36:25   ( -80.02, -63.56) ( -80.03, -63.44)    2.32                69
 09/26/2012   12:14:12   ( -79.61,  73.87) ( -79.61,  73.73)    2.83                61
 09/26/2012   13:03:31   (  79.86,-116.63) (  79.86,-116.63)    0.10                16
 09/29/2012   04:30:38   ( -79.73,-169.38) ( -79.73,-169.37)    0.16                37