Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 7 2.  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)
 07/03/2017   19:08:26   (  79.18, 147.50) 07/03/2017   19:07:36  (  79.17, 147.41)    2.22                50
 07/03/2017   19:57:46   ( -79.46, -42.99) 07/03/2017   19:58:13  ( -79.46, -43.06)    1.54                27
 07/06/2017   11:24:50   (  79.32, -95.71) 07/06/2017   11:24:25  (  79.33, -95.62)    1.83                25
 07/06/2017   12:14:10   ( -79.60,  73.87) 07/06/2017   12:15:02  ( -79.61,  74.00)    2.62                52
 07/09/2017   02:53:57   ( -73.51,-168.50) 07/09/2017   02:52:44  ( -73.76,-170.23)   60.99                73
 07/09/2017   03:41:17   (  79.38,  20.57) 07/09/2017   03:41:18  (  79.38,  20.56)    0.18                 1
 07/11/2017   19:08:25   ( -79.19, -32.44) 07/11/2017   19:07:34  ( -79.19, -32.44)    0.15                51
 07/11/2017   19:57:44   (  79.44, 136.83) 07/11/2017   19:58:11  (  79.43, 136.75)    1.86                27
 07/14/2017   11:24:52   ( -79.24,  83.79) 07/14/2017   11:24:27  ( -79.24,  83.74)    1.15                25