Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 8 29.  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)
 08/31/2015   16:40:43   ( -78.48,   0.54) 08/31/2015   16:39:30  ( -78.48,   0.62)    1.94                73
 08/31/2015   17:30:00   (  78.84, 170.12) 08/31/2015   17:30:05  (  78.84, 170.14)    0.50                 5
 09/03/2015   08:57:07   ( -78.57, 116.89) 09/03/2015   08:56:20  ( -78.56, 116.88)    0.46                47
 09/03/2015   09:46:24   (  78.92, -73.51) 09/03/2015   09:46:55  (  78.92, -73.58)    1.64                31
 09/06/2015   01:13:29   ( -78.68,-126.60) 09/06/2015   01:13:08  ( -78.68,-126.64)    1.04                21
 09/06/2015   02:02:46   (  79.03,  43.03) 09/06/2015   02:03:43  (  79.03,  42.94)    2.00                57
 09/08/2015   16:40:32   (  78.47,-179.48) 09/08/2015   16:39:20  (  78.47,-179.44)    1.09                72
 09/08/2015   17:29:50   ( -78.87,  -9.69) 09/08/2015   17:29:55  ( -78.87,  -9.69)    0.15                 5
 09/11/2015   08:56:56   (  78.51, -63.36) 09/11/2015   08:56:11  (  78.51, -63.45)    2.27                45