Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 8 25.  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)
 08/26/2018   11:25:08   (  79.29, -95.92) 08/26/2018   11:24:57  (  79.30, -95.87)    1.17                11
 08/26/2018   12:14:29   ( -79.52,  73.26) 08/26/2018   12:15:36  ( -79.52,  73.24)    0.37                67
 08/29/2018   02:52:18   ( -79.01,-149.43) 08/29/2018   02:51:18  ( -79.01,-149.54)    2.43                60
 08/29/2018   03:41:36   (  79.33,  20.19) 08/29/2018   03:41:53  (  79.33,  20.12)    1.52                17
 08/31/2018   19:08:41   ( -79.21, -32.36) 08/31/2018   19:08:08  ( -79.21, -32.30)    1.39                33
 08/31/2018   19:58:00   (  79.48, 137.05) 08/31/2018   19:58:44  (  79.49, 137.17)    2.59                44
 09/03/2018   11:25:08   ( -79.28,  83.97) 09/03/2018   11:25:03  ( -79.27,  83.93)    0.87                 5
 09/03/2018   12:14:27   (  79.54,-106.61) 09/03/2018   12:15:39  (  79.54,-106.58)    0.58                72
 09/06/2018   02:52:15   (  79.06,  30.85) 09/06/2018   02:51:20  (  79.06,  30.83)    0.48                55