Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2013 2 20.  Predictions up to the next  14.0 days:

     Date     Time(AURA)   AURA Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/22/2013   20:48:09   ( -79.73, -53.45) ( -79.72, -53.56)    2.18                30
 02/22/2013   21:37:29   (  79.94, 115.88) (  79.94, 115.86)    0.31                47
 02/25/2013   13:04:38   ( -79.79,  62.90) ( -79.79,  62.79)    2.09                 3
 02/25/2013   13:53:44   (  80.46,-123.52) (  80.38,-123.41)    9.17                74
 02/28/2013   04:31:43   (  79.72,  10.61) (  79.73,  10.74)    2.70                54
 02/28/2013   05:21:05   ( -79.91, 179.70) ( -79.91, 179.72)    0.34                24
 03/02/2013   20:48:10   (  79.79, 127.00) (  79.79, 127.05)    1.03                26
 03/02/2013   21:37:33   ( -79.94, -64.17) ( -79.94, -64.24)    1.45                52
 03/05/2013   12:16:01   ( -77.87,  64.10) ( -78.03,  63.33)   24.88                74