Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 7 16.  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)
 07/17/2015   08:57:23   ( -78.66, 117.36) 07/17/2015   08:57:04  ( -78.67, 117.45)    1.99                19
 07/17/2015   09:46:38   (  79.10, -72.46) 07/17/2015   09:47:36  (  79.11, -72.32)    2.97                58
 07/20/2015   00:24:31   (  78.26,  63.56) 07/20/2015   00:23:22  (  78.25,  63.48)    1.96                69
 07/20/2015   01:13:45   ( -78.82,-125.86) 07/20/2015   01:13:53  ( -78.82,-125.80)    1.38                 8
 07/22/2015   16:40:51   (  78.49,-179.39) 07/22/2015   16:40:09  (  78.49,-179.40)    0.21                42
 07/22/2015   17:30:06   ( -79.00,  -8.93) 07/22/2015   17:30:41  ( -79.01,  -8.79)    3.11                35
 07/25/2015   08:57:14   (  78.58, -63.06) 07/25/2015   08:57:00  (  78.57, -63.16)    2.34                14
 07/25/2015   09:46:29   ( -79.08, 107.45) 07/25/2015   09:47:32  ( -79.08, 107.49)    0.92                63
 07/28/2015   00:24:15   ( -78.45,-115.45) 07/28/2015   00:23:11  ( -78.46,-115.35)    2.50                64