Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 6 16.  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)
 06/18/2018   03:41:53   ( -79.42,-159.17) 06/18/2018   03:41:27  ( -79.42,-159.11)    1.15                26
 06/18/2018   04:31:12   (  79.67,  10.25) 06/18/2018   04:32:04  (  79.67,  10.31)    1.20                52
 06/20/2018   19:11:10   (  72.99, 126.30) 06/20/2018   19:09:57  (  73.30, 124.42)   69.76                73
 06/20/2018   19:58:19   ( -79.52, -42.64) 06/20/2018   19:58:19  ( -79.52, -42.56)    1.73                 0
 06/23/2018   11:25:27   (  79.24, -96.24) 06/23/2018   11:24:37  (  79.23, -96.36)    2.55                50
 06/23/2018   12:14:45   ( -79.61,  73.87) 06/23/2018   12:15:11  ( -79.61,  74.00)    2.77                26
 06/26/2018   03:41:52   (  79.36,  20.45) 06/26/2018   03:41:28  (  79.36,  20.40)    1.04                24
 06/26/2018   04:31:13   ( -79.61,-170.18) 06/26/2018   04:32:06  ( -79.61,-170.28)    2.14                53
 06/28/2018   19:10:15   ( -75.74, -47.09) 06/28/2018   19:09:01  ( -75.96, -48.27)   40.83                74