Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2013 4 17.  Predictions up to the next  14.0 days:

     Date     Time(AURA)   AURA Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/19/2013   19:58:50   ( -79.64, -41.70) ( -79.64, -41.65)    0.98                59
 04/19/2013   20:48:11   (  79.82, 127.30) (  79.82, 127.31)    0.18                19
 04/22/2013   12:15:19   ( -79.72,  74.79) ( -79.73,  74.92)    2.76                34
 04/22/2013   13:04:40   (  79.90,-116.19) (  79.90,-116.10)    1.95                44
 04/25/2013   04:31:48   ( -79.78,-168.86) ( -79.78,-168.79)    1.51                 8
 04/25/2013   05:21:09   (  79.96,   0.16) (  79.96,   0.20)    0.73                70
 04/27/2013   19:58:54   (  79.67, 138.52) (  79.68, 138.68)    3.16                59
 04/27/2013   20:48:18   ( -79.78, -52.96) ( -79.78, -53.09)    2.77                19
 04/30/2013   12:15:21   (  79.72,-105.19) (  79.73,-105.09)    2.07                32