Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 2 10.  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   ( -79.74, -40.76) 02/12/2018   19:58:05  ( -79.75, -40.71)    1.06                20
 02/12/2018   20:47:45   (  79.95, 128.52) 02/12/2018   20:48:43  (  79.95, 128.53)    0.25                58
 02/15/2018   11:25:31   (  79.59, -93.68) 02/15/2018   11:24:18  (  79.59, -93.68)    0.06                73
 02/15/2018   12:14:52   ( -79.82,  75.69) 02/15/2018   12:14:56  ( -79.81,  75.68)    0.38                 4
 02/18/2018   03:41:58   (  79.65,  22.71) 02/18/2018   03:41:09  (  79.65,  22.67)    0.93                49
 02/18/2018   04:31:20   ( -79.85,-168.16) 02/18/2018   04:31:48  ( -79.85,-168.22)    1.30                28
 02/20/2018   19:58:25   (  79.72, 139.09) 02/20/2018   19:58:00  (  79.72, 139.02)    1.48                25
 02/20/2018   20:47:47   ( -79.92, -51.75) 02/20/2018   20:48:39  ( -79.91, -51.84)    1.82                52
 02/23/2018   12:14:51   (  79.78,-104.56) 02/23/2018   12:14:50  (  79.78,-104.64)    1.66                 1