Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 10 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)
 10/10/2018   19:08:33   (  79.15, 147.30) 10/10/2018   19:08:26  (  79.14, 147.22)    1.75                 7
 10/10/2018   19:57:54   ( -79.40, -43.41) 10/10/2018   19:59:04  ( -79.40, -43.54)    2.75                70
 10/13/2018   10:35:41   ( -78.94,  94.27) 10/13/2018   10:34:43  ( -78.94,  94.23)    0.76                58
 10/13/2018   11:24:58   (  79.27, -96.04) 10/13/2018   11:25:18  (  79.27, -96.06)    0.50                20
 10/16/2018   02:52:05   ( -79.10,-148.88) 10/16/2018   02:51:34  ( -79.10,-148.86)    0.41                31
 10/16/2018   03:41:23   (  79.39,  20.61) 10/16/2018   03:42:10  (  79.39,  20.64)    0.73                47
 10/18/2018   19:08:30   ( -79.22, -32.28) 10/18/2018   19:08:26  ( -79.22, -32.21)    1.52                 4
 10/18/2018   19:57:25   (  80.31, 143.79) 10/18/2018   19:58:39  (  80.19, 144.05)   13.95                74
 10/21/2018   10:35:37   (  78.90, -85.95) 10/21/2018   10:34:44  (  78.89, -86.06)    2.48                53