Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 2 18.  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)
 02/20/2017   11:25:01   ( -79.68,  86.97) 02/20/2017   11:24:37  ( -79.69,  87.11)    2.93                24
 02/20/2017   12:14:22   (  79.86,-104.03) 02/20/2017   12:15:16  (  79.86,-103.98)    0.96                54
 02/23/2017   03:41:31   ( -79.68,-157.15) 02/23/2017   03:41:31  ( -79.67,-157.25)    2.03                 0
 02/25/2017   19:08:38   (  79.51, 149.88) 02/25/2017   19:07:44  (  79.51, 149.83)    1.02                54
 02/25/2017   19:57:58   ( -79.78, -40.49) 02/25/2017   19:58:21  ( -79.78, -40.49)    0.14                23
 02/28/2017   11:25:04   (  79.64, -93.27) 02/28/2017   11:24:33  (  79.65, -93.19)    1.62                31
 02/28/2017   12:14:25   ( -79.88,  76.13) 02/28/2017   12:15:11  ( -79.88,  76.28)    2.91                46
 03/03/2017   03:41:32   (  79.66,  22.75) 03/03/2017   03:41:25  (  79.66,  22.67)    1.52                 7