Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2013 9 17.  Predictions up to the next  14.0 days:

     Date     Time(AURA)   AURA Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/18/2013   19:08:52   ( -79.13, -32.89) ( -79.13, -32.86)    0.70                10
 09/18/2013   19:58:12   (  79.36, 136.23) (  79.36, 136.20)    0.54                68
 09/21/2013   10:36:01   (  78.83, -86.43) (  78.82, -86.54)    2.58                58
 09/21/2013   11:25:20   ( -79.16,  83.19) ( -79.15,  83.10)    2.09                19
 09/24/2013   02:52:23   (  79.04,  30.73) (  79.06,  30.85)    2.98                30
 09/24/2013   03:41:45   ( -79.26,-160.32) ( -79.25,-160.44)    2.84                48
 09/26/2013   19:08:51   (  79.04, 146.61) (  79.04, 146.50)    2.27                 0
 09/26/2013   19:56:13   ( -81.84,  -1.52) ( -81.23,  -1.52)   67.53                73
 09/29/2013   10:35:56   ( -78.93,  94.16) ( -78.94,  94.25)    2.22                49