Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 7 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)
 07/06/2017   11:24:50   (  79.33, -95.65) 07/06/2017   11:24:25  (  79.33, -95.56)    1.98                25
 07/06/2017   12:14:10   ( -79.61,  73.91) 07/06/2017   12:15:02  ( -79.62,  74.05)    2.85                52
 07/09/2017   02:53:52   ( -73.78,-167.93) 07/09/2017   02:52:39  ( -74.02,-169.60)   58.39                73
 07/09/2017   03:41:17   (  79.39,  20.62) 07/09/2017   03:41:18  (  79.39,  20.64)    0.37                 1
 07/11/2017   19:08:24   ( -79.23, -32.17) 07/11/2017   19:07:33  ( -79.23, -32.11)    1.32                51
 07/11/2017   19:57:44   (  79.44, 136.87) 07/11/2017   19:58:11  (  79.44, 136.84)    0.71                27
 07/14/2017   11:24:50   ( -79.28,  84.06) 07/14/2017   11:24:25  ( -79.29,  84.09)    0.90                25
 07/14/2017   12:14:09   (  79.53,-106.64) 07/14/2017   12:15:02  (  79.53,-106.69)    1.21                53
 07/17/2017   02:53:36   (  74.40,  13.50) 07/17/2017   02:52:23  (  74.63,  11.99)   51.82                73