Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 9 8.  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)
 09/11/2018   10:37:34   ( -73.94,  76.53) 09/11/2018   10:36:20  ( -74.22,  75.06)   54.54                74
 09/11/2018   11:25:06   (  79.25, -96.17) 09/11/2018   11:25:07  (  79.25, -96.23)    1.17                 1
 09/14/2018   02:52:11   ( -79.15,-148.57) 09/14/2018   02:51:22  ( -79.16,-148.46)    2.32                49
 09/14/2018   03:41:32   (  79.35,  20.30) 09/14/2018   03:42:01  (  79.34,  20.22)    1.80                29
 09/16/2018   19:08:37   ( -79.21, -32.35) 09/16/2018   19:08:16  ( -79.21, -32.29)    1.49                21
 09/16/2018   19:57:57   (  79.43, 136.76) 09/16/2018   19:58:54  (  79.43, 136.67)    2.18                57
 09/19/2018   10:35:44   (  78.96, -85.58) 09/19/2018   10:34:34  (  78.96, -85.65)    1.62                70
 09/19/2018   11:25:03   ( -79.30,  84.10) 09/19/2018   11:25:10  ( -79.30,  84.14)    0.90                 7
 09/22/2018   02:52:10   (  79.05,  30.81) 09/22/2018   02:51:28  (  79.05,  30.74)    1.63                42