Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 7 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)
 07/14/2015   16:41:04   ( -78.40,   0.10) 07/14/2015   16:40:19  ( -78.39,   0.03)    1.61                45
 07/14/2015   17:30:19   (  78.85, 170.16) 07/14/2015   17:30:51  (  78.85, 170.12)    0.81                32
 07/17/2015   08:57:22   ( -78.70, 117.58) 07/17/2015   08:57:03  ( -78.70, 117.66)    1.90                19
 07/17/2015   09:46:38   (  79.10, -72.49) 07/17/2015   09:47:36  (  79.11, -72.35)    2.99                58
 07/20/2015   00:24:31   (  78.25,  63.50) 07/20/2015   00:23:22  (  78.24,  63.44)    1.56                69
 07/20/2015   01:13:45   ( -78.81,-125.91) 07/20/2015   01:13:53  ( -78.82,-125.84)    1.70                 8
 07/22/2015   16:40:50   (  78.51,-179.27) 07/22/2015   16:40:08  (  78.52,-179.24)    0.80                42
 07/22/2015   17:30:09   ( -78.86,  -9.74) 07/22/2015   17:30:45  ( -78.86,  -9.83)    2.22                36
 07/25/2015   08:57:11   (  78.67, -62.56) 07/25/2015   08:56:57  (  78.66, -62.58)    0.58                14