Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 12 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)
 12/13/2018   19:08:19   (  79.58, 150.29) 12/13/2018   19:08:06  (  79.57, 150.21)    1.76                13
 12/13/2018   19:57:39   ( -79.83, -40.17) 12/13/2018   19:58:43  ( -79.84, -40.04)    2.62                64
 12/16/2018   10:35:27   ( -79.37,  97.08) 12/16/2018   10:34:23  ( -79.36,  96.96)    2.49                64
 12/16/2018   11:24:45   (  79.67, -93.17) 12/16/2018   11:24:58  (  79.66, -93.23)    1.38                13
 12/19/2018   02:51:52   ( -79.50,-146.16) 12/19/2018   02:51:14  ( -79.49,-146.24)    1.64                38
 12/19/2018   03:41:11   (  79.76,  23.35) 12/19/2018   03:41:50  (  79.75,  23.33)    0.53                39
 12/21/2018   19:08:17   ( -79.58, -29.68) 12/21/2018   19:08:05  ( -79.58, -29.70)    0.44                12
 12/21/2018   19:57:36   (  79.84, 139.85) 12/21/2018   19:58:41  (  79.84, 139.89)    0.82                65
 12/24/2018   10:35:23   (  79.39, -82.75) 12/24/2018   10:34:20  (  79.38, -82.89)    3.18                63