Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 9 22.  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)
 09/24/2018   19:08:35   (  79.23, 147.82) 09/24/2018   19:08:19  (  79.24, 147.90)    1.65                16
 09/24/2018   19:57:57   ( -79.43, -43.22) 09/24/2018   19:58:59  ( -79.42, -43.34)    2.75                62
 09/27/2018   10:35:45   ( -78.96,  94.38) 09/27/2018   10:34:39  ( -78.95,  94.33)    1.16                66
 09/27/2018   11:25:00   (  79.34, -95.57) 09/27/2018   11:25:11  (  79.35, -95.44)    2.76                11
 09/30/2018   02:52:10   ( -79.07,-149.04) 09/30/2018   02:51:31  ( -79.07,-149.06)    0.37                39
 09/30/2018   03:41:29   (  79.34,  20.26) 09/30/2018   03:42:08  (  79.33,  20.15)    2.35                39
 10/02/2018   19:08:36   ( -79.19, -32.47) 10/02/2018   19:08:24  ( -79.19, -32.44)    0.66                12
 10/02/2018   19:57:55   (  79.44, 136.85) 10/02/2018   19:59:01  (  79.44, 136.81)    0.90                66
 10/05/2018   10:35:42   (  79.00, -85.39) 10/05/2018   10:34:40  (  79.00, -85.32)    1.55                62