Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2014 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)
 06/25/2014   15:03:10   ( -75.93,  15.18) 06/25/2014   15:02:13  ( -75.93,  15.17)    0.47                57
 06/25/2014   15:52:19   (  76.74,-174.52) 06/25/2014   15:52:39  (  76.74,-174.56)    1.21                20
 06/28/2014   07:19:53   ( -75.98, 131.14) 06/28/2014   07:19:10  ( -75.97, 131.09)    1.61                43
 06/28/2014   08:09:02   (  76.79, -58.54) 06/28/2014   08:09:36  (  76.78, -58.63)    2.53                34
 06/30/2014   23:36:42   ( -76.02,-112.95) 06/30/2014   23:36:07  ( -76.01,-113.00)    1.57                35
 07/01/2014   00:25:52   (  76.78,  57.21) 07/01/2014   00:26:34  (  76.77,  57.11)    2.63                42
 07/03/2014   15:53:37   ( -76.05,   2.92) 07/03/2014   15:53:04  ( -76.05,   2.91)    0.30                33
 07/03/2014   16:42:47   (  76.81, 173.08) 07/03/2014   16:43:31  (  76.80, 173.02)    1.51                44
 07/06/2014   08:10:37   ( -76.07, 118.73) 07/06/2014   08:10:00  ( -76.08, 118.80)    2.25                37