Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 3 13.  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)
 03/14/2015   00:24:57   (  78.66,  65.90) 03/14/2015   00:24:55  (  78.66,  65.80)    2.12                 2
 03/14/2015   01:13:26   ( -80.73,-110.29) 03/14/2015   01:14:40  ( -80.56,-109.80)   20.71                74
 03/16/2015   15:52:03   ( -78.51,  13.31) 03/16/2015   15:51:07  ( -78.52,  13.41)    2.27                56
 03/16/2015   16:41:22   (  78.79,-177.51) 03/16/2015   16:41:44  (  78.78,-177.65)    3.04                22
 03/19/2015   08:08:28   ( -78.57, 129.52) 03/19/2015   08:07:57  ( -78.56, 129.45)    1.61                31
 03/19/2015   08:57:42   (  79.05, -60.12) 03/19/2015   08:58:28  (  79.04, -60.13)    0.36                46
 03/22/2015   00:24:51   ( -78.72,-113.76) 03/22/2015   00:24:45  ( -78.72,-113.84)    1.93                 6
 03/22/2015   01:14:05   (  79.19,  56.66) 03/22/2015   01:15:16  (  79.19,  56.65)    0.30                71
 03/24/2015   15:51:55   (  78.49,-166.73) 03/24/2015   15:50:57  (  78.49,-166.77)    0.88                58