Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 9 20.  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)
 09/21/2016   10:35:14   ( -79.06,  95.05) 09/21/2016   10:34:30  ( -79.06,  94.97)    1.91                44
 09/21/2016   11:24:30   (  79.45, -94.82) 09/21/2016   11:25:03  (  79.46, -94.67)    3.13                33
 09/24/2016   02:51:37   ( -79.26,-147.84) 09/24/2016   02:51:22  ( -79.27,-147.74)    2.19                15
 09/24/2016   03:40:56   (  79.52,  21.57) 09/24/2016   03:41:59  (  79.53,  21.62)    1.08                63
 09/26/2016   18:18:42   (  79.04, 159.05) 09/26/2016   18:17:40  (  79.04, 159.08)    0.63                62
 09/26/2016   19:08:01   ( -79.37, -31.27) 09/26/2016   19:08:16  ( -79.37, -31.21)    1.22                15
 09/29/2016   10:35:06   (  79.18, -84.22) 09/29/2016   10:34:34  (  79.18, -84.18)    0.87                32
 09/29/2016   11:24:26   ( -79.46,  85.26) 09/29/2016   11:25:11  ( -79.47,  85.33)    1.50                45
 10/02/2016   02:51:30   (  79.30,  32.46) 10/02/2016   02:51:28  (  79.31,  32.57)    2.34                 2