Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 5 28.  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)
 05/30/2018   11:25:30   ( -79.30,  84.14) 05/30/2018   11:24:38  ( -79.29,  84.05)    2.16                52
 05/30/2018   12:14:47   (  79.64,-105.90) 05/30/2018   12:15:12  (  79.64,-105.78)    2.40                25
 06/02/2018   03:41:56   ( -79.37,-159.51) 06/02/2018   03:41:31  ( -79.37,-159.61)    2.19                25
 06/02/2018   04:31:13   (  79.70,  10.45) 06/02/2018   04:32:05  (  79.71,  10.59)    2.92                52
 06/04/2018   19:10:04   (  76.39, 134.96) 06/04/2018   19:08:51  (  76.56, 133.82)   35.09                73
 06/04/2018   19:58:21   ( -79.47, -42.93) 06/04/2018   19:58:23  ( -79.47, -43.00)    1.68                 2
 06/07/2018   11:25:24   (  79.33, -95.67) 06/07/2018   11:24:36  (  79.32, -95.70)    0.53                48
 06/07/2018   12:14:45   ( -79.57,  73.64) 06/07/2018   12:15:14  ( -79.57,  73.61)    0.64                29
 06/10/2018   03:41:48   (  79.46,  21.09) 06/10/2018   03:41:27  (  79.46,  21.15)    1.32                21