Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 8 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)
 08/18/2015   08:57:20   ( -78.55, 116.76) 08/18/2015   08:56:38  ( -78.55, 116.74)    0.54                42
 08/18/2015   09:46:34   (  79.03, -72.89) 08/18/2015   09:47:09  (  79.04, -72.77)    2.90                35
 08/21/2015   01:13:42   ( -78.78,-126.10) 08/21/2015   01:13:24  ( -78.79,-125.99)    2.47                18
 08/21/2015   02:03:00   (  79.09,  43.35) 08/21/2015   02:04:00  (  79.09,  43.36)    0.14                60
 08/23/2015   16:40:50   (  78.44,-179.70) 08/23/2015   16:39:40  (  78.44,-179.65)    1.19                70
 08/23/2015   17:30:06   ( -78.87,  -9.70) 08/23/2015   17:30:13  ( -78.88,  -9.65)    1.19                 7
 08/26/2015   08:57:11   (  78.64, -62.75) 08/26/2015   08:56:26  (  78.64, -62.66)    2.03                45
 08/26/2015   09:46:29   ( -79.03, 107.10) 08/26/2015   09:47:01  ( -79.03, 107.19)    1.86                32
 08/29/2015   01:13:37   (  78.66,  53.24) 08/29/2015   01:13:18  (  78.65,  53.18)    1.47                19
 08/29/2015   02:02:55   ( -79.05,-136.89) 08/29/2015   02:03:53  ( -79.04,-136.97)    1.80                58
 08/31/2015   16:40:45   ( -78.35,  -0.11) 08/31/2015   16:39:34  ( -78.35,  -0.18)    1.65                71