Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2014 4 29.  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)
 04/30/2014   15:52:20   ( -77.12,   6.88) 04/30/2014   15:51:17  ( -77.13,   6.97)    2.51                63
 04/30/2014   16:41:33   (  77.69, 176.83) 04/30/2014   16:41:48  (  77.70, 176.90)    1.83                15
 05/03/2014   08:08:46   ( -77.13, 122.82) 05/03/2014   08:08:17  ( -77.12, 122.71)    2.77                29
 05/03/2014   08:57:54   (  77.93, -66.26) 05/03/2014   08:58:42  (  77.94, -66.14)    3.01                48
 05/05/2014   23:35:52   (  76.75,  69.66) 05/05/2014   23:34:40  (  76.74,  69.59)    1.94                72
 05/06/2014   00:25:02   ( -77.57,-119.57) 05/06/2014   00:25:06  ( -77.58,-119.47)    2.98                 4
 05/08/2014   15:52:07   (  77.19,-172.80) 05/08/2014   15:51:29  (  77.20,-172.72)    2.16                38
 05/08/2014   16:41:23   ( -77.73,  -3.01) 05/08/2014   16:42:02  ( -77.73,  -2.96)    1.16                39
 05/11/2014   08:08:27   (  77.32, -56.43) 05/11/2014   08:08:25  (  77.31, -56.48)    1.35                 2