Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 8 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)
 08/10/2018   11:25:17   (  79.20, -96.52) 08/10/2018   11:24:50  (  79.19, -96.66)    3.18                27
 08/10/2018   12:14:36   ( -79.51,  73.18) 08/10/2018   12:15:26  ( -79.52,  73.22)    1.06                50
 08/13/2018   02:53:38   ( -75.59,-163.42) 08/13/2018   02:52:24  ( -75.80,-164.57)   39.69                74
 08/13/2018   03:41:39   (  79.39,  20.57) 08/13/2018   03:41:40  (  79.40,  20.68)    2.31                 1
 08/15/2018   19:08:46   ( -79.19, -32.48) 08/15/2018   19:07:59  ( -79.19, -32.46)    0.38                47
 08/15/2018   19:58:05   (  79.46, 136.90) 08/15/2018   19:58:35  (  79.46, 136.98)    1.75                30
 08/18/2018   11:25:12   ( -79.26,  83.82) 08/18/2018   11:24:54  ( -79.26,  83.83)    0.26                18
 08/18/2018   12:14:30   (  79.56,-106.51) 08/18/2018   12:15:29  (  79.56,-106.44)    1.53                59
 08/21/2018   02:52:16   (  79.11,  31.17) 08/21/2018   02:51:09  (  79.12,  31.26)    2.03                67