Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 7 1.  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)
 07/04/2015   00:24:46   (  78.17,  63.12) 07/04/2015   00:23:36  (  78.17,  63.02)    2.38                70
 07/04/2015   01:14:00   ( -78.74,-126.35) 07/04/2015   01:14:07  ( -78.74,-126.33)    0.56                 7
 07/06/2015   16:41:06   (  78.53,-179.22) 07/06/2015   16:40:20  (  78.54,-179.11)    2.50                46
 07/06/2015   17:30:26   ( -78.84,  -9.92) 07/06/2015   17:30:58  ( -78.84,  -9.96)    0.66                32
 07/09/2015   08:57:30   (  78.66, -62.65) 07/09/2015   08:57:09  (  78.67, -62.55)    2.35                21
 07/09/2015   09:46:50   ( -78.97, 106.69) 07/09/2015   09:47:47  ( -78.96, 106.66)    0.70                57
 07/12/2015   00:24:39   ( -78.38,-115.89) 07/12/2015   00:23:26  ( -78.39,-115.79)    2.46                73
 07/12/2015   01:13:58   (  78.66,  53.20) 07/12/2015   01:14:03  (  78.65,  53.08)    2.91                 5
 07/14/2015   16:41:07   ( -78.37,  -0.07) 07/14/2015   16:40:20  ( -78.36,  -0.15)    1.72                47