Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 7 26.  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)
 07/28/2018   03:41:47   (  79.34,  20.29) 07/28/2018   03:41:31  (  79.34,  20.24)    1.03                16
 07/28/2018   04:31:06   ( -79.65,-169.93) 07/28/2018   04:32:07  ( -79.65,-169.84)    1.76                61
 07/30/2018   19:08:53   ( -79.20, -32.38) 07/30/2018   19:07:48  ( -79.20, -32.37)    0.16                65
 07/30/2018   19:58:11   (  79.50, 137.26) 07/30/2018   19:58:23  (  79.51, 137.40)    3.04                12
 08/02/2018   11:25:20   ( -79.24,  83.79) 08/02/2018   11:24:44  ( -79.24,  83.70)    1.73                36
 08/02/2018   12:14:37   (  79.58,-106.30) 08/02/2018   12:15:18  (  79.58,-106.25)    0.97                41
 08/05/2018   03:41:42   ( -79.44,-159.05) 08/05/2018   03:41:34  ( -79.45,-158.90)    3.09                 8
 08/05/2018   04:31:03   (  79.62,   9.86) 08/05/2018   04:32:13  (  79.61,   9.82)    0.87                70
 08/07/2018   19:08:50   (  79.15, 147.35) 08/07/2018   19:07:54  (  79.15, 147.26)    2.07                56