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   11:25:02   ( -79.67,  86.94) 02/20/2017   11:24:38  ( -79.68,  87.07)    2.80                24
 02/20/2017   12:14:23   (  79.85,-104.06) 02/20/2017   12:15:17  (  79.85,-104.02)    0.96                54
 02/23/2017   03:41:31   ( -79.67,-157.18) 02/23/2017   03:41:31  ( -79.67,-157.29)    2.29                 0
 02/25/2017   19:08:38   (  79.51, 149.85) 02/25/2017   19:07:44  (  79.50, 149.79)    1.36                54
 02/25/2017   19:57:58   ( -79.78, -40.53) 02/25/2017   19:58:21  ( -79.77, -40.54)    0.41                23
 02/28/2017   11:25:04   (  79.64, -93.30) 02/28/2017   11:24:33  (  79.64, -93.25)    0.96                31
 02/28/2017   12:14:25   ( -79.87,  76.10) 02/28/2017   12:15:11  ( -79.88,  76.21)    2.16                46
 03/03/2017   03:41:33   (  79.66,  22.71) 03/03/2017   03:41:26  (  79.65,  22.59)    2.54                 7