Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 5 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)
 05/14/2018   11:25:34   ( -79.35,  84.48) 05/14/2018   11:24:36  ( -79.35,  84.48)    0.22                58
 05/14/2018   12:14:53   (  79.62,-106.04) 05/14/2018   12:15:12  (  79.63,-105.94)    2.04                19
 05/17/2018   03:42:02   ( -79.37,-159.51) 05/17/2018   03:41:31  ( -79.37,-159.65)    3.04                31
 05/17/2018   04:31:21   (  79.64,   9.97) 05/17/2018   04:32:07  (  79.64,   9.94)    0.51                46
 05/19/2018   19:58:27   ( -79.51, -42.74) 05/19/2018   19:58:22  ( -79.51, -42.70)    0.94                 5
 05/19/2018   20:47:48   (  79.69, 126.21) 05/19/2018   20:49:01  (  79.68, 126.09)    2.39                73
 05/22/2018   11:25:31   (  79.39, -95.26) 05/22/2018   11:24:35  (  79.40, -95.12)    3.17                56
 05/22/2018   12:14:54   ( -79.56,  73.49) 05/22/2018   12:15:16  ( -79.55,  73.44)    1.05                22
 05/25/2018   03:41:56   (  79.47,  21.17) 05/25/2018   03:41:27  (  79.48,  21.27)    2.19                29