Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2014 2 19.  Predictions up to the next  14.0 days:

     Date     Time(AURA) AURA Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/20/2014   09:47:14   (  78.45, -75.94) 02/20/2014   09:47:03  (  78.44, -75.98)    1.05                11
 02/20/2014   10:36:30   ( -78.91,  94.22) 02/20/2014   10:37:36  ( -78.91,  94.32)    2.30                66
 02/23/2014   01:14:24   ( -78.12,-129.33) 02/23/2014   01:13:25  ( -78.11,-129.41)    1.94                59
 02/23/2014   02:03:38   (  78.58,  40.64) 02/23/2014   02:03:56  (  78.58,  40.62)    0.36                18
 02/25/2014   17:30:47   ( -78.26, -12.75) 02/25/2014   17:30:18  ( -78.25, -12.85)    2.52                29
 02/25/2014   18:20:02   (  78.71, 157.25) 02/25/2014   18:20:50  (  78.71, 157.22)    0.65                48
 02/28/2014   08:59:36   (  72.87, -80.91) 02/28/2014   08:58:23  (  73.06, -82.19)   46.50                73
 02/28/2014   09:47:07   ( -78.53, 104.52) 02/28/2014   09:47:08  ( -78.54, 104.60)    2.10                 1
 03/03/2014   01:14:11   (  78.27,  51.49) 03/03/2014   01:13:26  (  78.28,  51.58)    2.46                45
 03/03/2014   02:03:30   ( -78.63,-139.04) 03/03/2014   02:04:03  ( -78.63,-139.07)    0.68                33
 03/05/2014   17:30:34   (  78.34, 167.70) 03/05/2014   17:30:22  (  78.33, 167.63)    1.47                12