Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 8 11.  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)
 08/13/2018   02:53:38   ( -75.62,-163.32) 08/13/2018   02:52:24  ( -75.84,-164.45)   39.31                74
 08/13/2018   03:41:40   (  79.38,  20.53) 08/13/2018   03:41:41  (  79.39,  20.63)    2.34                 1
 08/15/2018   19:08:46   ( -79.18, -32.55) 08/15/2018   19:07:59  ( -79.18, -32.53)    0.41                47
 08/15/2018   19:58:04   (  79.49, 137.11) 08/15/2018   19:58:34  (  79.49, 137.20)    1.80                30
 08/18/2018   11:25:11   ( -79.28,  84.00) 08/18/2018   11:24:53  ( -79.28,  84.01)    0.24                18
 08/18/2018   12:14:30   (  79.55,-106.58) 08/18/2018   12:15:29  (  79.55,-106.51)    1.54                59
 08/21/2018   02:52:16   (  79.10,  31.11) 08/21/2018   02:51:09  (  79.11,  31.19)    2.01                67
 08/21/2018   03:41:36   ( -79.38,-159.46) 08/21/2018   03:41:47  ( -79.38,-159.45)    0.33                11
 08/23/2018   19:08:40   (  79.24, 147.85) 08/23/2018   19:08:02  (  79.24, 147.95)    2.28                38