Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 7 12.  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)
 07/14/2018   19:58:15   (  79.49, 137.16) 07/14/2018   19:58:14  (  79.49, 137.28)    2.57                 1
 07/14/2018   20:45:53   ( -81.84, -15.84) 07/14/2018   20:47:06  ( -81.28, -15.67)   62.67                73
 07/17/2018   11:25:23   ( -79.29,  84.11) 07/17/2018   11:24:30  ( -79.30,  84.18)    1.52                53
 07/17/2018   12:14:43   (  79.51,-106.79) 07/17/2018   12:15:08  (  79.51,-106.81)    0.39                25
 07/20/2018   03:41:51   ( -79.32,-159.86) 07/20/2018   03:41:24  ( -79.32,-159.90)    0.88                27
 07/20/2018   04:31:11   (  79.53,   9.24) 07/20/2018   04:32:02  (  79.53,   9.09)    3.07                51
 07/22/2018   19:58:18   ( -79.38, -43.59) 07/22/2018   19:58:17  ( -79.37, -43.72)    2.93                 1
 07/22/2018   20:45:51   (  81.84, 164.53) 07/22/2018   20:47:04  (  81.27, 164.55)   62.92                73
 07/25/2018   11:25:22   (  79.22, -96.36) 07/25/2018   11:24:29  (  79.22, -96.37)    0.35                53