Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 8 12.  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)
 08/15/2016   02:51:46   (  79.18,  31.64) 08/15/2016   02:51:32  (  79.18,  31.53)    2.48                14
 08/15/2016   03:41:05   ( -79.50,-158.62) 08/15/2016   03:42:08  ( -79.50,-158.62)    0.04                63
 08/17/2016   18:18:53   ( -79.02, -21.16) 08/17/2016   18:17:46  ( -79.02, -21.14)    0.52                67
 08/17/2016   19:08:12   (  79.28, 148.13) 08/17/2016   19:08:23  (  79.27, 148.00)    3.07                11
 08/20/2016   10:35:18   ( -79.15,  95.53) 08/20/2016   10:34:36  ( -79.15,  95.56)    0.55                42
 08/20/2016   11:24:38   (  79.37, -95.41) 08/20/2016   11:25:14  (  79.36, -95.53)    2.74                36
 08/23/2016   02:51:43   ( -79.27,-147.81) 08/23/2016   02:51:26  ( -79.27,-147.74)    1.47                17
 08/23/2016   03:41:03   (  79.49,  21.27) 08/23/2016   03:42:04  (  79.48,  21.21)    1.53                61
 08/25/2016   18:18:48   (  79.05, 159.07) 08/25/2016   18:17:39  (  79.06, 159.15)    1.78                69