Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2014 9 6.  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)
 09/08/2014   05:40:34   (  74.63, -27.65) 09/08/2014   05:39:43  (  74.63, -27.68)    0.90                51
 09/08/2014   06:29:37   ( -75.88, 143.40) 09/08/2014   06:30:02  ( -75.89, 143.43)    1.20                25
 09/10/2014   21:56:50   (  75.06,  89.35) 09/10/2014   21:56:34  (  75.06,  89.29)    1.78                16
 09/10/2014   22:45:54   ( -76.25, -99.58) 09/10/2014   22:46:54  ( -76.25, -99.55)    0.82                60
 09/13/2014   13:24:00   ( -74.51,  36.19) 09/13/2014   13:23:01  ( -74.51,  36.21)    0.69                59
 09/13/2014   14:13:03   (  75.62,-153.23) 09/13/2014   14:13:22  (  75.61,-153.25)    0.51                19
 09/16/2014   05:40:17   ( -74.84, 152.92) 09/16/2014   05:39:54  ( -74.83, 152.87)    1.84                23
 09/16/2014   06:29:14   (  76.23, -35.45) 09/16/2014   06:30:08  (  76.25, -35.35)    2.97                54
 09/18/2014   21:07:23   (  74.24,  99.72) 09/18/2014   21:06:19  (  74.24,  99.74)    0.60                64