Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 2 1.  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)
 02/02/2018   03:41:56   (  79.71,  23.11) 02/02/2018   03:41:19  (  79.72,  23.24)    2.60                37
 02/02/2018   04:31:20   ( -79.83,-168.39) 02/02/2018   04:32:01  ( -79.82,-168.54)    3.16                41
 02/04/2018   19:58:25   (  79.73, 139.10) 02/04/2018   19:58:12  (  79.73, 139.09)    0.33                13
 02/04/2018   20:47:46   ( -79.95, -51.52) 02/04/2018   20:48:50  ( -79.95, -51.51)    0.19                64
 02/07/2018   11:25:33   ( -79.56,  86.13) 02/07/2018   11:24:26  ( -79.56,  86.06)    1.53                67
 02/07/2018   12:14:53   (  79.77,-104.66) 02/07/2018   12:15:04  (  79.77,-104.79)    2.73                11
 02/10/2018   03:41:57   ( -79.72,-156.83) 02/10/2018   03:41:13  ( -79.73,-156.71)    2.42                44
 02/10/2018   04:31:18   (  79.89,  12.13) 02/10/2018   04:31:52  (  79.90,  12.20)    1.52                34
 02/12/2018   19:58:25   ( -79.76, -40.62) 02/12/2018   19:58:05  ( -79.76, -40.59)    0.44                20
 02/12/2018   20:47:46   (  79.93, 128.33) 02/12/2018   20:48:44  (  79.93, 128.31)    0.39                58
 02/15/2018   11:25:32   (  79.56, -93.84) 02/15/2018   11:24:19  (  79.56, -93.89)    0.98                73