Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2012 12 19.  Predictions up to the next  14.0 days:

     Date     Time(AURA)   AURA Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/20/2012   20:47:07   ( -79.80, -52.81) ( -79.79, -52.87)    1.30                 7
 12/20/2012   21:36:28   (  79.97, 116.21) (  79.97, 116.12)    1.99                71
 12/23/2012   12:14:09   (  79.71,-105.25) (  79.72,-105.13)    2.50                57
 12/23/2012   13:03:30   ( -79.93,  64.11) ( -79.93,  64.26)    2.89                20
 12/26/2012   04:30:35   (  79.71,  10.65) (  79.70,  10.54)    2.17                28
 12/26/2012   05:19:56   ( -79.93,-179.98) ( -79.93, 179.93)    1.78                49
 12/28/2012   20:00:31   ( -71.29, -69.02) ( -71.71, -71.50)   99.21                73
 12/28/2012   20:46:58   (  79.79, 127.20) (  79.79, 127.07)    2.81                 1
 12/31/2012   12:13:58   ( -79.73,  74.93) ( -79.73,  74.98)    0.84                48