Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2014 12 4.  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)
 12/05/2014   06:29:26   (  77.52, -30.81) 12/05/2014   06:29:15  (  77.52, -30.74)    1.76                11
 12/05/2014   07:18:40   ( -78.12, 139.50) 12/05/2014   07:19:46  ( -78.12, 139.50)    0.19                66
 12/07/2014   21:56:42   ( -76.88, -85.04) 12/07/2014   21:55:38  ( -76.88, -85.03)    0.29                64
 12/07/2014   22:45:52   (  77.59,  85.37) 12/07/2014   22:46:06  (  77.58,  85.29)    2.18                14
 12/10/2014   14:13:02   ( -77.12,  31.73) 12/10/2014   14:12:24  ( -77.11,  31.68)    1.51                38
 12/10/2014   15:02:06   (  78.08,-156.55) 12/10/2014   15:02:45  (  78.09,-156.45)    2.33                39
 12/13/2014   06:29:18   ( -77.51, 149.18) 12/13/2014   06:29:07  ( -77.50, 149.15)    0.88                11
 12/13/2014   07:18:31   (  78.06, -40.75) 12/13/2014   07:19:38  (  78.05, -40.87)    2.86                67
 12/15/2014   21:56:26   (  76.92,  95.19) 12/15/2014   21:55:27  (  76.91,  95.10)    2.55                59
 12/15/2014   22:45:31   ( -77.95, -92.98) 12/15/2014   22:45:48  ( -77.96, -92.89)    2.28                17
 12/18/2014   14:12:33   (  77.59,-146.28) 12/18/2014   14:12:03  (  77.60,-146.18)    2.49                30