Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 6 23.  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)
 06/23/2015   08:57:36   (  78.58, -63.06) 06/23/2015   08:57:23  (  78.58, -63.07)    0.19                13
 06/23/2015   09:46:52   ( -79.04, 107.17) 06/23/2015   09:47:56  ( -79.05, 107.28)    2.49                64
 06/26/2015   00:24:49   ( -78.19,-116.82) 06/26/2015   00:23:43  ( -78.18,-116.92)    2.49                66
 06/26/2015   01:14:03   (  78.69,  53.38) 06/26/2015   01:14:14  (  78.69,  53.32)    1.33                11
 06/28/2015   16:41:13   ( -78.37,  -0.07) 06/28/2015   16:40:31  ( -78.36,  -0.14)    1.78                42
 06/28/2015   17:30:27   (  78.86, 170.20) 06/28/2015   17:31:02  (  78.86, 170.18)    0.59                35
 07/01/2015   08:57:36   ( -78.61, 117.07) 07/01/2015   08:57:18  ( -78.61, 117.10)    0.91                18
 07/01/2015   09:46:51   (  79.05, -72.81) 07/01/2015   09:47:50  (  79.06, -72.71)    2.16                59
 07/04/2015   00:24:43   (  78.35,  63.97) 07/04/2015   00:23:32  (  78.36,  64.08)    2.63                71
 07/04/2015   01:14:02   ( -78.71,-126.53) 07/04/2015   01:14:09  ( -78.71,-126.56)    0.67                 7
 07/06/2015   16:41:07   (  78.52,-179.31) 07/06/2015   16:40:21  (  78.53,-179.19)    2.83                46