Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 3 17.  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)
 03/19/2015   08:08:28   ( -78.59, 129.63) 03/19/2015   08:07:57  ( -78.59, 129.60)    0.75                31
 03/19/2015   08:57:43   (  79.03, -60.22) 03/19/2015   08:58:29  (  79.04, -60.19)    0.58                46
 03/22/2015   00:24:51   ( -78.74,-113.63) 03/22/2015   00:24:45  ( -78.74,-113.67)    0.93                 6
 03/22/2015   01:14:05   (  79.18,  56.57) 03/22/2015   01:15:16  (  79.18,  56.60)    0.75                71
 03/24/2015   15:51:55   (  78.48,-166.79) 03/24/2015   15:50:57  (  78.48,-166.79)    0.19                58
 03/24/2015   16:41:09   ( -79.03,   3.92) 03/24/2015   16:41:28  ( -79.03,   4.03)    2.39                19
 03/27/2015   08:08:15   (  78.70, -49.71) 03/27/2015   08:07:43  (  78.70, -49.68)    0.78                32
 03/27/2015   08:57:31   ( -79.16, 120.63) 03/27/2015   08:58:16  ( -79.17, 120.77)    3.01                45
 03/30/2015   00:24:37   (  78.81,  66.79) 03/30/2015   00:24:32  (  78.80,  66.73)    1.27                 5