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   ( -63.50, 124.42) 01/14/2015   06:32:42  ( -63.77, 122.80)   85.39                73
 01/14/2015   07:18:46   (  78.06, -40.74) 01/14/2015   07:18:44  (  78.05, -40.77)    0.88                 2
 01/14/2015   08:07:29   ( -79.82, 137.49) 01/14/2015   08:08:43  ( -79.73, 137.84)   12.46                74
 01/16/2015   22:45:59   ( -77.73, -93.99) 01/16/2015   22:44:57  ( -77.73, -93.90)    2.51                62
 01/16/2015   23:35:14   (  78.20,  75.84) 01/16/2015   23:35:30  (  78.20,  75.79)    1.27                16
 01/19/2015   15:02:26   ( -77.88,  22.56) 01/19/2015   15:01:43  ( -77.88,  22.62)    1.44                43
 01/19/2015   15:51:42   (  78.31,-167.78) 01/19/2015   15:52:17  (  78.30,-167.88)    2.29                35
 01/22/2015   07:18:53   ( -77.98, 138.93) 01/22/2015   07:18:30  ( -77.99, 138.91)    0.30                23
 01/22/2015   08:08:03   (  78.66, -50.06) 01/22/2015   08:08:57  (  78.67, -49.96)    2.24                54
 01/24/2015   22:50:41   (  62.59,  59.58) 01/24/2015   22:49:29  (  62.85,  57.83)   94.06                72
 01/24/2015   23:35:18   ( -78.09,-104.70) 01/24/2015   23:35:16  ( -78.08,-104.80)    2.47                 2
 01/25/2015   00:23:35   (  80.65,  81.13) 01/25/2015   00:24:49  (  80.47,  81.55)   22.22                74
 01/27/2015   15:02:24   (  77.82,-157.66) 01/27/2015   15:01:26  (  77.82,-157.64)    0.45                58