Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 10 10.  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)
 10/10/2018   19:08:23   (  79.58, 150.18) 10/10/2018   19:08:10  (  79.59, 150.33)    2.96                13
 10/10/2018   19:57:45   ( -79.78, -40.69) 10/10/2018   19:58:49  ( -79.79, -40.58)    2.20                64
 10/13/2018   10:35:32   ( -79.31,  96.56) 10/13/2018   10:34:28  ( -79.31,  96.52)    0.83                64
 10/13/2018   11:24:50   (  79.59, -93.86) 10/13/2018   11:25:04  (  79.59, -93.89)    0.69                14
 10/16/2018   02:51:56   ( -79.47,-146.48) 10/16/2018   02:51:18  ( -79.48,-146.37)    2.30                38
 10/16/2018   03:41:15   (  79.71,  22.88) 10/16/2018   03:41:55  (  79.72,  23.00)    2.65                40
 10/18/2018   19:08:23   ( -79.51, -30.30) 10/18/2018   19:08:12  ( -79.51, -30.31)    0.31                11
 10/18/2018   19:57:42   (  79.75, 139.07) 10/18/2018   19:58:49  (  79.75, 139.07)    0.28                67
 10/21/2018   10:35:28   (  79.34, -83.25) 10/21/2018   10:34:27  (  79.33, -83.30)    1.15                61
 10/21/2018   11:24:49   ( -79.59,  86.13) 10/21/2018   11:25:05  ( -79.58,  86.03)    2.22                16
 10/24/2018   02:51:53   (  79.41,  33.13) 10/24/2018   02:51:19  (  79.40,  33.01)    2.61                34