Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 8 30.  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)
 08/31/2016   02:51:38   (  79.28,  32.28) 08/31/2016   02:51:19  (  79.29,  32.40)    2.62                19
 08/31/2016   03:41:01   ( -79.44,-159.02) 08/31/2016   03:42:00  ( -79.44,-159.12)    2.13                59
 09/02/2016   18:18:46   ( -79.04, -21.01) 09/02/2016   18:17:35  ( -79.04, -20.91)    2.25                71
 09/02/2016   19:08:05   (  79.30, 148.31) 09/02/2016   19:08:12  (  79.30, 148.29)    0.36                 7
 09/05/2016   10:35:12   ( -79.09,  95.24) 09/05/2016   10:34:27  ( -79.10,  95.23)    0.17                45
 09/05/2016   11:24:31   (  79.36, -95.45) 09/05/2016   11:25:04  (  79.35, -95.56)    2.44                33
 09/08/2016   02:51:37   ( -79.19,-148.32) 09/08/2016   02:51:18  ( -79.18,-148.38)    1.57                19
 09/08/2016   03:40:54   (  79.52,  21.54) 09/08/2016   03:41:52  (  79.53,  21.67)    2.79                58
 09/10/2016   18:18:42   (  78.93, 158.42) 09/10/2016   18:17:32  (  78.93, 158.30)    2.77                70