Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 8 5.  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)
 08/07/2018   19:08:51   (  79.13, 147.14) 08/07/2018   19:07:55  (  79.12, 147.06)    1.83                56
 08/07/2018   19:58:10   ( -79.44, -43.18) 08/07/2018   19:58:31  ( -79.45, -43.09)    2.04                21
 08/10/2018   11:25:17   (  79.20, -96.52) 08/10/2018   11:24:50  (  79.19, -96.65)    3.16                27
 08/10/2018   12:14:36   ( -79.52,  73.20) 08/10/2018   12:15:26  ( -79.52,  73.24)    0.95                50
 08/13/2018   02:53:40   ( -75.49,-163.70) 08/13/2018   02:52:26  ( -75.71,-164.86)   40.66                74
 08/13/2018   03:41:39   (  79.39,  20.58) 08/13/2018   03:41:40  (  79.40,  20.68)    2.16                 1
 08/15/2018   19:08:47   ( -79.15, -32.70) 08/15/2018   19:08:00  ( -79.15, -32.71)    0.20                47
 08/15/2018   19:58:05   (  79.46, 136.91) 08/15/2018   19:58:35  (  79.46, 136.97)    1.34                30
 08/18/2018   11:25:12   ( -79.26,  83.85) 08/18/2018   11:24:54  ( -79.26,  83.82)    0.65                18