Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2014 12 15.  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)
 12/15/2014   22:01:31   (  61.42,  71.02) 12/15/2014   22:00:19  (  61.64,  69.44)   87.13                72
 12/15/2014   22:45:58   ( -77.64, -94.41) 12/15/2014   22:45:55  ( -77.64, -94.42)    0.25                 3
 12/15/2014   23:34:37   (  79.59,  83.86) 12/15/2014   23:35:51  (  79.48,  84.12)   12.28                74
 12/18/2014   14:13:19   (  77.05,-148.54) 12/18/2014   14:12:15  (  77.05,-148.56)    0.52                64
 12/18/2014   15:02:32   ( -77.72,  21.77) 12/18/2014   15:02:45  ( -77.71,  21.68)    2.49                13
 12/21/2014   06:29:53   (  77.16, -32.27) 12/21/2014   06:29:04  (  77.16, -32.33)    1.74                49
 12/21/2014   07:18:59   ( -78.13, 139.50) 12/21/2014   07:19:26  ( -78.14, 139.61)    2.56                27
 12/23/2014   22:46:24   (  77.40,  84.50) 12/23/2014   22:45:49  (  77.39,  84.44)    1.71                35
 12/23/2014   23:35:32   ( -78.27,-104.01) 12/23/2014   23:36:13  ( -78.28,-103.89)    2.88                41
 12/26/2014   15:02:57   (  77.61,-158.76) 12/26/2014   15:02:35  (  77.61,-158.78)    0.42                22
 12/26/2014   15:52:11   ( -78.21,  11.57) 12/26/2014   15:53:06  ( -78.21,  11.51)    1.59                55
 12/29/2014   07:19:29   (  77.90, -41.67) 12/29/2014   07:19:19  (  77.91, -41.58)    2.14                10