Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2014 6 19.  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)
 06/20/2014   07:19:13   (  76.52, -46.98) 06/20/2014   07:18:49  (  76.52, -46.95)    0.93                24
 06/20/2014   08:08:23   ( -77.33, 123.63) 06/20/2014   08:09:16  ( -77.34, 123.73)    2.84                53
 06/22/2014   22:46:28   ( -75.76,-101.14) 06/22/2014   22:45:20  ( -75.75,-101.22)    2.49                68
 06/22/2014   23:35:34   (  76.70,  69.53) 06/22/2014   23:35:43  (  76.69,  69.49)    1.07                 9
 06/25/2014   15:02:39   ( -76.37,  16.68) 06/25/2014   15:02:03  ( -76.38,  16.76)    2.28                36
 06/25/2014   15:51:53   (  76.92,-173.80) 06/25/2014   15:52:35  (  76.91,-173.88)    2.05                42
 06/28/2014   07:18:58   ( -76.63, 133.45) 06/28/2014   07:18:55  ( -76.64, 133.52)    2.04                 3
 06/28/2014   08:07:29   (  79.04, -48.03) 06/28/2014   08:08:43  (  78.91, -47.61)   17.24                74
 06/30/2014   22:46:06   (  76.08,  79.89) 06/30/2014   22:45:19  (  76.08,  79.95)    1.70                47
 06/30/2014   23:35:16   ( -76.93,-109.62) 06/30/2014   23:35:46  ( -76.94,-109.52)    2.87                30
 07/03/2014   15:02:28   (  76.17,-163.92) 07/03/2014   15:02:15  (  76.16,-164.01)    2.62                13