Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2014 7 13.  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)
 07/14/2014   06:30:16   (  75.22, -38.59) 07/14/2014   06:29:07  (  75.20, -38.67)    2.80                69
 07/14/2014   07:19:23   ( -76.23, 132.03) 07/14/2014   07:19:31  ( -76.22, 131.96)    2.21                 8
 07/16/2014   22:46:33   (  75.67,  78.59) 07/16/2014   22:45:57  (  75.67,  78.55)    1.09                36
 07/16/2014   23:35:42   ( -76.58,-110.93) 07/16/2014   23:36:23  ( -76.58,-110.95)    0.60                41
 07/19/2014   14:18:20   ( -59.88,   5.80) 07/19/2014   14:17:07  ( -60.14,   4.30)   88.71                73
 07/19/2014   15:02:51   (  76.04,-164.41) 07/19/2014   15:02:49  (  76.04,-164.46)    1.47                 2
 07/19/2014   15:51:27   ( -78.42,  12.59) 07/19/2014   15:52:41  ( -78.33,  12.99)   13.34                74
 07/22/2014   06:30:03   ( -75.43, 142.04) 07/22/2014   06:29:18  ( -75.43, 142.02)    0.83                45
 07/22/2014   07:19:06   (  76.52, -46.98) 07/22/2014   07:19:38  (  76.53, -46.91)    2.14                32
 07/24/2014   22:46:17   ( -75.89,-100.74) 07/24/2014   22:46:07  ( -75.89,-100.74)    0.04                10
 07/24/2014   23:35:27   (  76.62,  69.26) 07/24/2014   23:36:35  (  76.61,  69.17)    2.51                68
 07/27/2014   14:13:25   (  75.27,-154.25) 07/27/2014   14:12:34  (  75.27,-154.26)    0.33                51