Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 7 22.  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)
 07/25/2018   11:25:20   (  79.29, -95.88) 07/25/2018   11:24:35  (  79.30, -95.81)    1.69                45
 07/25/2018   12:14:42   ( -79.50,  73.10) 07/25/2018   12:15:15  ( -79.49,  72.99)    2.46                33
 07/28/2018   03:41:47   (  79.34,  20.32) 07/28/2018   03:41:31  (  79.34,  20.27)    1.00                16
 07/28/2018   04:31:06   ( -79.66,-169.88) 07/28/2018   04:32:07  ( -79.66,-169.80)    1.65                61
 07/30/2018   19:08:53   ( -79.20, -32.34) 07/30/2018   19:07:48  ( -79.20, -32.33)    0.19                65
 07/30/2018   19:58:11   (  79.50, 137.27) 07/30/2018   19:58:23  (  79.51, 137.42)    3.12                12
 08/02/2018   11:25:19   ( -79.25,  83.82) 08/02/2018   11:24:43  ( -79.24,  83.74)    1.60                36
 08/02/2018   12:14:36   (  79.58,-106.29) 08/02/2018   12:15:17  (  79.58,-106.24)    1.18                41
 08/05/2018   03:41:45   ( -79.32,-159.80) 08/05/2018   03:41:38  ( -79.32,-159.93)    2.93                 7