Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2013 12 21.  Predictions up to the next  14.0 days:

     Date     Time(AURA)   AURA Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/23/2013   18:19:43   (  78.73, 157.26) (  78.73, 157.24)    0.39                 7
 12/23/2013   19:09:03   ( -79.04, -33.32) ( -79.03, -33.44)    2.59                70
 12/26/2013   09:47:50   ( -76.77,  96.79) ( -76.87,  96.29)   16.72                74
 12/26/2013   10:36:31   (  78.77, -86.72) (  78.76, -86.79)    1.55                 3
 12/29/2013   02:04:37   ( -77.26,-145.62) ( -77.33,-145.97)   11.62                74
 12/29/2013   02:53:29   (  78.75,  28.95) (  78.75,  28.92)    0.69                 3
 12/31/2013   19:10:37   (  78.76, 144.74) (  78.77, 144.84)    2.26                 7
 12/31/2013   19:59:59   ( -79.01, -46.20) ( -79.00, -46.29)    2.00                70
 01/03/2014   11:27:58   (  78.64,-100.27) (  78.64,-100.23)    1.05                26