Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 9 5.  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)
 09/06/2015   01:13:35   ( -78.67,-126.70) 09/06/2015   01:13:09  ( -78.67,-126.72)    0.36                26
 09/06/2015   02:02:52   (  79.03,  42.98) 09/06/2015   02:03:44  (  79.02,  42.90)    1.83                52
 09/08/2015   17:29:59   ( -78.85,  -9.83) 09/08/2015   17:29:55  ( -78.85,  -9.77)    1.60                 4
 09/08/2015   18:19:00   (  79.80, 164.11) 09/08/2015   18:20:14  (  79.73, 164.23)    8.48                74
 09/11/2015   08:57:09   (  78.50, -63.49) 09/11/2015   08:56:11  (  78.49, -63.51)    0.53                58
 09/11/2015   09:46:27   ( -78.89, 106.29) 09/11/2015   09:46:46  ( -78.88, 106.23)    1.57                19
 09/14/2015   01:13:36   (  78.57,  52.78) 09/14/2015   01:13:01  (  78.56,  52.67)    2.62                35
 09/14/2015   02:02:50   ( -79.12,-136.44) 09/14/2015   02:03:31  ( -79.13,-136.31)    2.72                41
 09/16/2015   17:29:58   (  78.84, 170.15) 09/16/2015   17:29:45  (  78.85, 170.26)    2.68                13
 09/16/2015   18:19:17   ( -79.18, -20.18) 09/16/2015   18:20:21  ( -79.19, -20.10)    1.90                64
 09/19/2015   08:57:10   ( -78.41, 116.08) 09/19/2015   08:56:03  ( -78.41, 116.01)    1.81                67