Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 6 30.  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)
 07/01/2018   11:25:24   ( -79.33,  84.33) 07/01/2018   11:24:33  ( -79.34,  84.43)    2.20                51
 07/01/2018   12:14:43   (  79.58,-106.29) 07/01/2018   12:15:10  (  79.59,-106.20)    1.88                27
 07/04/2018   03:41:52   ( -79.33,-159.77) 07/04/2018   03:41:27  ( -79.33,-159.87)    2.04                25
 07/04/2018   04:31:11   (  79.58,   9.59) 07/04/2018   04:32:04  (  79.57,   9.47)    2.43                53
 07/06/2018   19:11:27   (  71.92, 124.33) 07/06/2018   19:10:14  (  72.27, 122.30)   79.35                73
 07/06/2018   19:58:17   ( -79.48, -42.88) 07/06/2018   19:58:17  ( -79.48, -42.85)    0.57                 0
 07/09/2018   11:25:25   (  79.22, -96.35) 07/09/2018   11:24:34  (  79.21, -96.48)    2.75                51
 07/09/2018   12:14:46   ( -79.48,  72.96) 07/09/2018   12:15:12  ( -79.47,  72.82)    2.95                26
 07/12/2018   03:41:50   (  79.37,  20.47) 07/12/2018   03:41:24  (  79.37,  20.48)    0.28                26
 07/12/2018   04:31:11   ( -79.62,-170.17) 07/12/2018   04:32:02  ( -79.62,-170.15)    0.41                51
 07/14/2018   19:58:17   (  79.39, 136.50) 07/14/2018   19:58:17  (  79.38, 136.37)    2.75                 0