Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 6 28.  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)
 06/30/2016   18:19:04   ( -79.07, -20.82) 06/30/2016   18:18:06  ( -79.07, -20.82)    0.08                58
 06/30/2016   19:08:21   (  79.42, 149.02) 06/30/2016   19:08:40  (  79.43, 149.17)    3.14                19
 07/03/2016   10:35:29   ( -79.22,  95.97) 07/03/2016   10:34:56  ( -79.23,  96.09)    2.62                33
 07/03/2016   11:24:49   (  79.44, -94.93) 07/03/2016   11:25:34  (  79.44, -94.96)    0.70                45
 07/06/2016   02:51:56   ( -79.24,-148.00) 07/06/2016   02:51:49  ( -79.24,-148.03)    0.59                 7
 07/06/2016   03:41:13   (  79.58,  21.87) 07/06/2016   03:42:23  (  79.58,  21.99)    2.51                70
 07/08/2016   18:19:01   (  79.08, 159.24) 07/08/2016   18:18:02  (  79.09, 159.29)    0.98                59
 07/08/2016   19:08:23   ( -79.30, -31.76) 07/08/2016   19:08:42  ( -79.29, -31.90)    3.06                19
 07/11/2016   10:35:28   (  79.13, -84.57) 07/11/2016   10:34:55  (  79.13, -84.62)    1.08                33