Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2014 12 17.  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)
 12/18/2014   14:13:15   (  77.07,-148.44) 12/18/2014   14:12:14  (  77.07,-148.46)    0.51                61
 12/18/2014   15:02:27   ( -77.78,  22.06) 12/18/2014   15:02:43  ( -77.77,  21.97)    2.11                16
 12/21/2014   06:29:37   (  77.51, -30.85) 12/21/2014   06:28:55  (  77.52, -30.76)    2.19                42
 12/21/2014   07:18:51   ( -78.11, 139.43) 12/21/2014   07:19:26  ( -78.11, 139.47)    0.93                35
 12/23/2014   22:46:03   (  77.69,  85.79) 12/23/2014   22:45:42  (  77.69,  85.82)    0.82                21
 12/23/2014   23:35:18   ( -78.24,-104.08) 12/23/2014   23:36:14  ( -78.24,-104.09)    0.23                56
 12/26/2014   14:14:50   ( -72.46,  19.45) 12/26/2014   14:13:36  ( -72.60,  18.71)   29.22                74
 12/26/2014   15:02:25   (  77.93,-157.26) 12/26/2014   15:02:26  (  77.94,-157.20)    1.30                 1
 12/26/2014   15:48:46   ( -81.50,  74.78) 12/26/2014   15:49:59  ( -80.92,  73.85)   67.41                73
 12/29/2014   06:29:37   ( -77.45, 148.93) 12/29/2014   06:28:44  ( -77.46, 148.97)    0.96                53