Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2013 4 8.  Predictions up to the next  14.0 days:

     Date     Time(AURA)   AURA Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/09/2013   04:31:28   ( -79.85,-168.21) ( -79.85,-168.15)    1.26                 1
 04/09/2013   05:18:28   (  81.35,  55.63) (  80.55,  54.13)   92.53                72
 04/11/2013   19:58:43   (  79.66, 138.58) (  79.66, 138.59)    0.29                58
 04/11/2013   20:48:04   ( -79.88, -52.11) ( -79.89, -52.03)    1.75                19
 04/14/2013   12:15:19   (  79.73,-105.05) (  79.73,-105.07)    0.43                39
 04/14/2013   13:04:41   ( -79.91,  64.00) ( -79.92,  64.06)    1.15                38
 04/17/2013   04:31:57   (  79.73,  10.77) (  79.73,  10.67)    2.06                21
 04/17/2013   05:21:18   ( -79.95,-179.88) ( -79.95,-179.91)    0.61                56
 04/19/2013   20:48:34   (  79.84, 127.43) (  79.84, 127.51)    1.59                 5