Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 2 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)
 02/12/2018   19:58:25   ( -79.76, -40.59) 02/12/2018   19:58:05  ( -79.77, -40.54)    1.03                20
 02/12/2018   20:47:46   (  79.94, 128.41) 02/12/2018   20:48:44  (  79.94, 128.42)    0.24                58
 02/15/2018   11:25:32   (  79.57, -93.78) 02/15/2018   11:24:19  (  79.57, -93.79)    0.28                73
 02/15/2018   12:14:53   ( -79.80,  75.58) 02/15/2018   12:14:57  ( -79.80,  75.56)    0.43                 4
 02/18/2018   03:41:58   (  79.64,  22.62) 02/18/2018   03:41:09  (  79.64,  22.56)    1.18                49
 02/18/2018   04:31:19   ( -79.87,-167.98) 02/18/2018   04:31:47  ( -79.87,-168.05)    1.54                28
 02/20/2018   19:58:25   (  79.71, 139.00) 02/20/2018   19:58:00  (  79.70, 138.91)    1.90                25
 02/20/2018   20:47:47   ( -79.90, -51.85) 02/20/2018   20:48:39  ( -79.90, -51.96)    2.24                52
 02/23/2018   12:14:52   (  79.77,-104.64) 02/23/2018   12:14:51  (  79.76,-104.75)    2.30                 1