Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 7 9.  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)
 07/09/2018   11:25:22   (  79.32, -95.69) 07/09/2018   11:24:30  (  79.33, -95.55)    3.05                52
 07/09/2018   12:14:43   ( -79.57,  73.60) 07/09/2018   12:15:08  ( -79.58,  73.74)    3.03                25
 07/12/2018   03:41:50   (  79.35,  20.39) 07/12/2018   03:41:24  (  79.35,  20.37)    0.43                26
 07/12/2018   04:31:11   ( -79.60,-170.30) 07/12/2018   04:32:02  ( -79.60,-170.31)    0.19                51
 07/14/2018   19:58:15   (  79.50, 137.22) 07/14/2018   19:58:14  (  79.50, 137.35)    2.91                 1
 07/14/2018   20:45:51   ( -81.84, -14.85) 07/14/2018   20:47:04  ( -81.26, -14.76)   64.02                73
 07/17/2018   11:25:23   ( -79.30,  84.17) 07/17/2018   11:24:30  ( -79.31,  84.27)    2.01                53
 07/17/2018   12:14:43   (  79.52,-106.75) 07/17/2018   12:15:08  (  79.52,-106.74)    0.26                25
 07/20/2018   03:41:49   ( -79.36,-159.56) 07/20/2018   03:41:22  ( -79.36,-159.55)    0.28                27
 07/20/2018   04:31:09   (  79.57,   9.53) 07/20/2018   04:32:00  (  79.57,   9.44)    2.03                51
 07/22/2018   19:58:16   ( -79.42, -43.31) 07/22/2018   19:58:15  ( -79.41, -43.37)    1.48                 1