Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2013 4 10.  Predictions up to the next  14.0 days:

     Date     Time(AURA)   AURA Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/11/2013   19:58:38   (  79.71, 138.94) (  79.71, 138.96)    0.45                54
 04/11/2013   20:48:00   ( -79.89, -51.99) ( -79.90, -51.95)    0.94                23
 04/14/2013   12:15:09   (  79.75,-104.87) (  79.74,-104.95)    1.60                30
 04/14/2013   13:04:31   ( -79.93,  64.22) ( -79.93,  64.16)    1.08                47
 04/17/2013   04:31:39   (  79.84,  11.67) (  79.83,  11.69)    0.41                 6
 04/17/2013   05:21:01   ( -80.02,-179.22) ( -80.02,-179.17)    0.98                71
 04/19/2013   19:58:49   ( -79.68, -41.28) ( -79.69, -41.23)    1.17                59
 04/19/2013   20:48:09   (  79.89, 128.00) (  79.89, 128.00)    0.26                19
 04/22/2013   12:15:19   ( -79.71,  74.85) ( -79.71,  74.76)    1.82                33