Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2014 12 28.  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)
 12/29/2014   06:29:36   ( -77.43, 148.84) 12/29/2014   06:28:45  ( -77.42, 148.83)    0.42                51
 12/29/2014   07:18:44   (  78.22, -40.01) 12/29/2014   07:19:10  (  78.23, -39.91)    2.56                26
 12/31/2014   22:45:58   ( -77.58, -94.63) 12/31/2014   22:45:32  ( -77.57, -94.71)    2.04                26
 12/31/2014   23:35:06   (  78.36,  76.61) 12/31/2014   23:35:57  (  78.37,  76.65)    0.98                51
 01/03/2015   14:15:47   (  68.60,-166.31) 01/03/2015   14:14:34  (  68.78,-167.53)   53.73                73
 01/03/2015   15:02:09   ( -78.12,  23.69) 01/03/2015   15:02:08  ( -78.13,  23.80)    2.84                 1
 01/03/2015   15:49:08   (  81.82,-119.58) 01/03/2015   15:50:21  (  81.33,-119.59)   54.15                73
 01/06/2015   06:29:15   (  77.67, -30.09) 01/06/2015   06:28:24  (  77.67, -30.01)    1.95                51
 01/06/2015   07:18:27   ( -78.33, 140.64) 01/06/2015   07:18:53  ( -78.34, 140.73)    2.24                26
 01/08/2015   22:45:31   (  77.92,  86.96) 01/08/2015   22:45:08  (  77.93,  87.01)    1.37                23
 01/08/2015   23:34:44   ( -78.54,-102.42) 01/08/2015   23:35:38  ( -78.54,-102.32)    2.16                54
 01/11/2015   14:12:38   ( -77.38,  32.91) 01/11/2015   14:11:27  ( -77.38,  32.88)    0.87                71
 01/11/2015   15:01:46   (  78.17,-155.99) 01/11/2015   15:01:52  (  78.17,-155.94)    1.32                 6