Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 2 6.  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)
 02/07/2015   07:19:09   ( -77.80, 138.09) 02/07/2015   07:18:03  ( -77.80, 138.03)    1.32                66
 02/07/2015   08:08:19   (  78.49, -50.96) 02/07/2015   08:08:30  (  78.49, -50.93)    0.67                11
 02/09/2015   23:35:32   ( -78.09,-104.71) 02/09/2015   23:34:50  ( -78.09,-104.74)    0.78                42
 02/10/2015   00:24:44   (  78.68,  65.93) 02/10/2015   00:25:19  (  78.68,  65.98)    1.38                35
 02/12/2015   15:51:54   ( -78.36,  12.50) 02/12/2015   15:51:37  ( -78.36,  12.53)    0.49                17
 02/12/2015   16:41:07   (  78.90,-176.97) 02/12/2015   16:42:07  (  78.90,-176.85)    2.73                60
 02/15/2015   07:19:01   (  78.00, -40.96) 02/15/2015   07:17:53  (  78.01, -40.93)    0.86                68
 02/15/2015   08:08:14   ( -78.62, 129.73) 02/15/2015   08:08:23  ( -78.62, 129.83)    2.37                 9
 02/17/2015   23:35:19   (  78.34,  76.56) 02/17/2015   23:34:38  (  78.35,  76.69)    3.03                41