Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 2 9.  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)
 02/10/2018   03:41:58   ( -79.70,-156.95) 02/10/2018   03:41:14  ( -79.71,-156.82)    2.81                44
 02/10/2018   04:31:18   (  79.91,  12.33) 02/10/2018   04:31:52  (  79.92,  12.42)    1.79                34
 02/12/2018   19:58:25   ( -79.74, -40.76) 02/12/2018   19:58:05  ( -79.75, -40.71)    1.16                20
 02/12/2018   20:47:45   (  79.95, 128.51) 02/12/2018   20:48:43  (  79.95, 128.53)    0.35                58
 02/15/2018   11:25:31   (  79.58, -93.69) 02/15/2018   11:24:18  (  79.59, -93.68)    0.35                73
 02/15/2018   12:14:52   ( -79.82,  75.68) 02/15/2018   12:14:56  ( -79.81,  75.68)    0.06                 4
 02/18/2018   03:41:58   (  79.65,  22.68) 02/18/2018   03:41:09  (  79.65,  22.67)    0.36                49
 02/18/2018   04:31:19   ( -79.88,-167.90) 02/18/2018   04:31:47  ( -79.88,-167.93)    0.70                28
 02/20/2018   19:58:24   (  79.75, 139.31) 02/20/2018   19:57:59  (  79.75, 139.30)    0.45                25
 02/20/2018   20:47:46   ( -79.94, -51.51) 02/20/2018   20:48:38  ( -79.94, -51.54)    0.79                52
 02/23/2018   12:14:50   (  79.81,-104.35) 02/23/2018   12:14:49  (  79.81,-104.36)    0.10                 1