Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 2 7.  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   03:41:57   ( -79.71,-156.88) 02/10/2018   03:41:13  ( -79.72,-156.74)    2.88                44
 02/10/2018   04:31:17   (  79.92,  12.39) 02/10/2018   04:31:51  (  79.92,  12.49)    1.94                34
 02/12/2018   19:58:25   ( -79.75, -40.69) 02/12/2018   19:58:05  ( -79.76, -40.63)    1.35                20
 02/12/2018   20:47:45   (  79.96, 128.57) 02/12/2018   20:48:43  (  79.96, 128.60)    0.62                58
 02/15/2018   11:25:31   (  79.59, -93.64) 02/15/2018   11:24:18  (  79.59, -93.61)    0.73                73
 02/15/2018   12:14:52   ( -79.82,  75.74) 02/15/2018   12:14:56  ( -79.82,  75.76)    0.37                 4
 02/18/2018   03:41:58   (  79.66,  22.72) 02/18/2018   03:41:09  (  79.66,  22.74)    0.41                49
 02/18/2018   04:31:19   ( -79.89,-167.85) 02/18/2018   04:31:47  ( -79.89,-167.85)    0.23                28
 02/20/2018   19:58:23   (  79.75, 139.34) 02/20/2018   19:57:58  (  79.75, 139.36)    0.42                25