Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 1 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)
 01/14/2015   06:33:55   ( -63.51, 124.44) 01/14/2015   06:32:42  ( -63.78, 122.82)   85.32                73
 01/14/2015   07:18:47   (  78.02, -40.88) 01/14/2015   07:18:45  (  78.02, -40.93)    1.04                 2
 01/14/2015   08:07:29   ( -79.83, 137.57) 01/14/2015   08:08:43  ( -79.74, 137.92)   12.54                74
 01/16/2015   22:45:58   ( -77.78, -93.74) 01/16/2015   22:44:56  ( -77.79, -93.63)    2.85                62
 01/16/2015   23:35:14   (  78.22,  75.90) 01/16/2015   23:35:30  (  78.21,  75.86)    1.06                16
 01/19/2015   15:02:25   ( -77.93,  22.81) 01/19/2015   15:01:42  ( -77.94,  22.90)    2.17                43
 01/19/2015   15:51:41   (  78.36,-167.50) 01/19/2015   15:52:16  (  78.36,-167.57)    1.68                35
 01/22/2015   07:18:50   ( -78.08, 139.39) 01/22/2015   07:18:27  ( -78.09, 139.43)    0.93                23
 01/22/2015   08:08:07   (  78.46, -51.11) 01/22/2015   08:09:02  (  78.45, -51.23)    2.89                55
 01/24/2015   22:50:25   (  63.52,  60.33) 01/24/2015   22:49:13  (  63.77,  58.62)   88.83                72
 01/24/2015   23:35:16   ( -78.19,-104.23) 01/24/2015   23:35:14  ( -78.18,-104.27)    0.91                 2