Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 4 2.  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)
 04/04/2015   08:08:24   ( -78.36, 128.38) 04/04/2015   08:07:42  ( -78.36, 128.29)    2.11                42
 04/04/2015   08:57:36   (  78.93, -60.90) 04/04/2015   08:58:11  (  78.93, -60.87)    0.59                35
 04/07/2015   00:24:42   ( -78.60,-114.48) 04/07/2015   00:24:26  ( -78.59,-114.54)    1.47                16
 04/07/2015   01:13:56   (  79.07,  55.86) 04/07/2015   01:14:57  (  79.08,  55.94)    1.75                61
 04/09/2015   15:51:46   (  78.26,-167.94) 04/09/2015   15:50:40  (  78.26,-168.01)    1.70                66
 04/09/2015   16:41:01   ( -78.79,   2.45) 04/09/2015   16:41:12  ( -78.78,   2.41)    0.88                11
 04/12/2015   08:08:03   (  78.49, -50.89) 04/12/2015   08:07:25  (  78.48, -50.94)    1.10                38
 04/12/2015   08:57:19   ( -78.96, 119.37) 04/12/2015   08:57:58  ( -78.96, 119.36)    0.32                39
 04/15/2015   00:24:19   (  78.70,  66.17) 04/15/2015   00:24:10  (  78.70,  66.14)    0.55                 9