Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 7 19.  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)
 07/20/2018   03:41:51   ( -79.30,-160.00) 07/20/2018   03:41:27  ( -79.29,-160.14)    3.15                24
 07/20/2018   04:31:08   (  79.63,   9.93) 07/20/2018   04:32:01  (  79.63,  10.00)    1.34                53
 07/22/2018   19:08:56   (  79.14, 147.28) 07/22/2018   19:07:43  (  79.14, 147.22)    1.30                73
 07/22/2018   19:58:15   ( -79.47, -42.98) 07/22/2018   19:58:19  ( -79.47, -42.96)    0.48                 4
 07/25/2018   11:25:20   (  79.31, -95.76) 07/25/2018   11:24:35  (  79.32, -95.65)    2.50                45
 07/25/2018   12:14:42   ( -79.52,  73.25) 07/25/2018   12:15:15  ( -79.51,  73.17)    1.80                33
 07/28/2018   03:41:45   (  79.40,  20.69) 07/28/2018   03:41:29  (  79.40,  20.71)    0.54                16
 07/28/2018   04:31:05   ( -79.68,-169.74) 07/28/2018   04:32:06  ( -79.68,-169.59)    2.97                61
 07/30/2018   19:08:52   ( -79.22, -32.22) 07/30/2018   19:07:47  ( -79.23, -32.12)    2.26                65