Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 2 8.  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   ( -79.71,-156.92) 02/10/2018   03:41:14  ( -79.72,-156.78)    2.81                44
 02/10/2018   04:31:18   (  79.92,  12.36) 02/10/2018   04:31:52  (  79.92,  12.45)    1.84                34
 02/12/2018   19:58:25   ( -79.75, -40.72) 02/12/2018   19:58:05  ( -79.75, -40.67)    1.20                20
 02/12/2018   20:47:45   (  79.95, 128.54) 02/12/2018   20:48:43  (  79.95, 128.57)    0.46                58
 02/15/2018   11:25:31   (  79.59, -93.67) 02/15/2018   11:24:18  (  79.59, -93.65)    0.50                73
 02/15/2018   12:14:52   ( -79.82,  75.71) 02/15/2018   12:14:56  ( -79.82,  75.72)    0.15                 4
 02/18/2018   03:41:58   (  79.65,  22.70) 02/18/2018   03:41:09  (  79.66,  22.70)    0.23                49
 02/18/2018   04:31:19   ( -79.89,-167.87) 02/18/2018   04:31:47  ( -79.88,-167.89)    0.48                28
 02/20/2018   19:58:24   (  79.75, 139.33) 02/20/2018   19:57:59  (  79.75, 139.33)    0.15                25