Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2014 2 18.  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)
 02/20/2014   09:47:13   (  78.46, -75.90) 02/20/2014   09:47:02  (  78.45, -75.93)    0.74                11
 02/20/2014   10:36:29   ( -78.92,  94.26) 02/20/2014   10:37:35  ( -78.92,  94.39)    2.86                66
 02/23/2014   01:14:22   ( -78.16,-129.12) 02/23/2014   01:13:23  ( -78.16,-129.14)    0.41                59
 02/23/2014   02:03:37   (  78.62,  40.87) 02/23/2014   02:03:55  (  78.63,  40.91)    1.02                18
 02/25/2014   17:30:45   ( -78.33, -12.38) 02/25/2014   17:30:16  ( -78.34, -12.36)    0.43                29
 02/25/2014   18:20:00   (  78.79, 157.66) 02/25/2014   18:20:48  (  78.79, 157.75)    2.05                48
 02/28/2014   08:59:03   (  74.56, -77.22) 02/28/2014   08:57:50  (  74.69, -78.19)   32.43                73
 02/28/2014   09:47:07   ( -78.50, 104.39) 02/28/2014   09:47:09  ( -78.51, 104.41)    0.47                 2
 03/03/2014   01:14:08   (  78.32,  51.70) 03/03/2014   01:13:24  (  78.32,  51.81)    2.64                44