Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 7 19.  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)
 07/22/2016   02:51:49   ( -79.29,-147.71) 07/22/2016   02:51:42  ( -79.29,-147.66)    1.23                 7
 07/22/2016   03:41:10   (  79.47,  21.14) 07/22/2016   03:42:21  (  79.46,  21.01)    2.78                71
 07/24/2016   18:18:55   (  79.06, 159.09) 07/24/2016   18:17:57  (  79.06, 159.09)    0.07                58
 07/24/2016   19:08:13   ( -79.42, -30.93) 07/24/2016   19:08:32  ( -79.43, -30.80)    2.90                19
 07/27/2016   10:35:17   (  79.23, -83.96) 07/27/2016   10:34:45  (  79.23, -83.86)    2.32                32
 07/27/2016   11:24:39   ( -79.44,  85.05) 07/27/2016   11:25:25  ( -79.43,  85.00)    1.11                46
 07/30/2016   02:51:44   (  79.24,  31.97) 07/30/2016   02:51:39  (  79.23,  31.92)    1.04                 5
 07/30/2016   03:41:03   ( -79.56,-158.22) 07/30/2016   03:42:15  ( -79.57,-158.13)    1.95                72
 08/01/2016   18:18:50   ( -79.06, -20.87) 08/01/2016   18:17:54  ( -79.06, -20.87)    0.29                56