Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 5 26.  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)
 05/27/2018   19:58:22   (  79.53, 137.46) 05/27/2018   19:58:20  (  79.54, 137.57)    2.37                 2
 05/27/2018   20:46:39   ( -81.51, -31.71) 05/27/2018   20:47:53  ( -81.16, -31.19)   39.37                74
 05/30/2018   11:25:30   ( -79.30,  84.16) 05/30/2018   11:24:38  ( -79.29,  84.06)    2.38                52
 05/30/2018   12:14:48   (  79.60,-106.16) 05/30/2018   12:15:13  (  79.61,-106.06)    2.29                25
 06/02/2018   03:41:56   ( -79.38,-159.48) 06/02/2018   03:41:31  ( -79.37,-159.60)    2.60                25
 06/02/2018   04:31:13   (  79.70,  10.46) 06/02/2018   04:32:05  (  79.71,  10.59)    2.59                52
 06/04/2018   19:10:07   (  76.20, 134.35) 06/04/2018   19:08:54  (  76.38, 133.16)   37.15                73
 06/04/2018   19:58:20   ( -79.48, -42.88) 06/04/2018   19:58:22  ( -79.47, -42.99)    2.41                 2
 06/07/2018   11:25:25   (  79.29, -95.88) 06/07/2018   11:24:37  (  79.29, -95.96)    1.58                48