Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 6 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)
 06/23/2018   11:25:26   (  79.27, -96.06) 06/23/2018   11:24:36  (  79.26, -96.18)    2.83                50
 06/23/2018   12:14:45   ( -79.59,  73.75) 06/23/2018   12:15:11  ( -79.60,  73.87)    2.65                26
 06/26/2018   03:41:52   (  79.35,  20.37) 06/26/2018   03:41:28  (  79.35,  20.31)    1.28                24
 06/26/2018   04:31:13   ( -79.60,-170.30) 06/26/2018   04:32:06  ( -79.59,-170.40)    2.22                53
 06/28/2018   19:10:16   ( -75.72, -47.15) 06/28/2018   19:09:02  ( -75.94, -48.34)   41.06                74
 06/28/2018   19:58:17   (  79.47, 137.05) 06/28/2018   19:58:19  (  79.48, 137.08)    0.84                 2
 07/01/2018   11:25:25   ( -79.22,  83.65) 07/01/2018   11:24:36  ( -79.21,  83.50)    3.15                49
 07/01/2018   12:14:43   (  79.51,-106.81) 07/01/2018   12:15:12  (  79.50,-106.95)    3.07                29
 07/04/2018   03:41:49   ( -79.37,-159.48) 07/04/2018   03:41:26  ( -79.37,-159.49)    0.13                23
 07/04/2018   04:31:08   (  79.62,   9.84) 07/04/2018   04:32:03  (  79.62,   9.83)    0.16                55
 07/06/2018   19:08:55   (  79.14, 147.29) 07/06/2018   19:07:42  (  79.14, 147.19)    2.18                73