Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 12 11.  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)
 12/13/2016   02:51:42   ( -79.51,-146.07) 12/13/2016   02:51:25  ( -79.51,-146.08)    0.23                17
 12/13/2016   03:41:00   (  79.80,  23.71) 12/13/2016   03:42:00  (  79.81,  23.81)    1.91                60
 12/15/2016   18:18:47   (  79.37, 161.25) 12/15/2016   18:17:38  (  79.38, 161.28)    0.65                69
 12/15/2016   19:08:09   ( -79.57, -29.75) 12/15/2016   19:08:18  ( -79.57, -29.87)    2.44                 9
 12/18/2016   10:35:14   (  79.43, -82.50) 12/18/2016   10:34:31  (  79.43, -82.54)    0.66                43
 12/18/2016   11:24:33   ( -79.74,  87.33) 12/18/2016   11:25:07  ( -79.74,  87.45)    2.55                34
 12/21/2016   02:51:39   (  79.51,  33.96) 12/21/2016   02:51:22  (  79.51,  33.91)    1.00                17
 12/21/2016   03:40:58   ( -79.82,-156.16) 12/21/2016   03:41:58  ( -79.82,-156.06)    2.10                60
 12/23/2016   18:18:47   ( -79.29, -19.26) 12/23/2016   18:17:39  ( -79.29, -19.40)    3.01                68