Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 9 12.  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)
 09/14/2018   02:52:11   ( -79.14,-148.61) 09/14/2018   02:51:22  ( -79.15,-148.48)    2.89                49
 09/14/2018   03:41:32   (  79.34,  20.28) 09/14/2018   03:42:01  (  79.34,  20.21)    1.42                29
 09/16/2018   19:08:37   ( -79.23, -32.17) 09/16/2018   19:08:16  ( -79.24, -32.06)    2.46                21
 09/16/2018   19:57:58   (  79.43, 136.72) 09/16/2018   19:58:55  (  79.42, 136.66)    1.39                57
 09/19/2018   10:35:43   (  78.99, -85.41) 09/19/2018   10:34:33  (  78.99, -85.42)    0.34                70
 09/19/2018   11:25:02   ( -79.32,  84.26) 09/19/2018   11:25:09  ( -79.33,  84.36)    2.39                 7
 09/22/2018   02:52:08   (  79.11,  31.20) 09/22/2018   02:51:26  (  79.11,  31.21)    0.36                42
 09/22/2018   03:41:27   ( -79.44,-159.08) 09/22/2018   03:42:02  ( -79.44,-158.95)    2.66                35
 09/24/2018   19:08:33   (  79.23, 147.79) 09/24/2018   19:08:19  (  79.23, 147.85)    1.30                14