Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 12 4.  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)
 12/05/2018   19:08:22   ( -79.52, -30.12) 12/05/2018   19:08:09  ( -79.52, -30.27)    3.01                13
 12/05/2018   19:57:41   (  79.78, 139.42) 12/05/2018   19:58:45  (  79.78, 139.38)    0.91                64
 12/08/2018   10:35:27   (  79.40, -82.72) 12/08/2018   10:34:22  (  79.40, -82.78)    1.17                65
 12/08/2018   11:24:46   ( -79.70,  87.05) 12/08/2018   11:24:58  ( -79.71,  87.17)    2.55                12
 12/11/2018   02:51:54   (  79.47,  33.60) 12/11/2018   02:51:15  (  79.46,  33.51)    1.83                39
 12/11/2018   03:41:13   ( -79.77,-156.59) 12/11/2018   03:41:51  ( -79.77,-156.49)    2.14                38
 12/13/2018   19:08:20   (  79.56, 150.17) 12/13/2018   19:08:07  (  79.56, 150.08)    2.09                13
 12/13/2018   19:57:39   ( -79.86, -39.97) 12/13/2018   19:58:43  ( -79.86, -39.86)    2.13                64
 12/16/2018   10:35:27   ( -79.36,  97.02) 12/16/2018   10:34:23  ( -79.35,  96.87)    3.15                64