Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 7 31.  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)
 08/02/2015   08:57:19   ( -78.69, 117.51) 08/02/2015   08:56:50  ( -78.70, 117.64)    2.98                29
 08/02/2015   09:46:38   (  78.97, -73.28) 08/02/2015   09:47:27  (  78.96, -73.35)    1.54                49
 08/05/2015   01:13:46   ( -78.80,-126.02) 08/05/2015   01:13:40  ( -78.80,-125.93)    2.14                 6
 08/05/2015   02:03:05   (  79.07,  43.20) 08/05/2015   02:04:17  (  79.06,  43.12)    1.93                72
 08/07/2015   16:40:54   (  78.50,-179.40) 08/07/2015   16:39:54  (  78.50,-179.34)    1.48                60
 08/07/2015   17:30:11   ( -78.93,  -9.38) 08/07/2015   17:30:28  ( -78.94,  -9.25)    2.88                17
 08/10/2015   08:57:23   (  78.49, -63.54) 08/10/2015   08:56:47  (  78.49, -63.63)    2.22                36
 08/10/2015   09:46:40   ( -78.93, 106.50) 08/10/2015   09:47:21  ( -78.93, 106.45)    1.09                41
 08/13/2015   01:13:45   (  78.77,  53.83) 08/13/2015   01:13:32  (  78.78,  53.92)    1.90                13