Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 8 15.  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   08:57:21   ( -78.51, 116.55) 08/18/2015   08:56:39  ( -78.50, 116.48)    1.66                42
 08/18/2015   09:46:34   (  79.03, -72.90) 08/18/2015   09:47:09  (  79.04, -72.81)    1.96                35
 08/21/2015   01:13:45   ( -78.67,-126.72) 08/21/2015   01:13:27  ( -78.67,-126.74)    0.45                18
 08/21/2015   02:03:02   (  79.02,  42.93) 08/21/2015   02:04:02  (  79.01,  42.81)    2.64                60
 08/23/2015   16:40:50   (  78.46,-179.57) 08/23/2015   16:39:39  (  78.47,-179.48)    2.21                71
 08/23/2015   17:30:07   ( -78.90,  -9.55) 08/23/2015   17:30:13  ( -78.91,  -9.46)    2.00                 6
 08/26/2015   08:57:14   (  78.56, -63.18) 08/26/2015   08:56:28  (  78.56, -63.19)    0.38                46
 08/26/2015   09:46:32   ( -78.96, 106.66) 08/26/2015   09:47:03  ( -78.95, 106.63)    0.75                31
 08/29/2015   01:13:39   (  78.65,  53.17) 08/29/2015   01:13:18  (  78.64,  53.10)    1.77                21