Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 5 31.  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)
 06/02/2018   03:41:55   ( -79.43,-159.13) 06/02/2018   03:41:29  ( -79.42,-159.14)    0.32                26
 06/02/2018   04:31:16   (  79.61,   9.79) 06/02/2018   04:32:08  (  79.61,   9.70)    1.92                52
 06/04/2018   19:12:02   (  70.33, 121.81) 06/04/2018   19:10:50  (  70.69, 119.42)   96.95                72
 06/04/2018   19:58:23   ( -79.46, -43.00) 06/04/2018   19:58:23  ( -79.46, -43.07)    1.43                 0
 06/07/2018   11:25:28   (  79.29, -95.92) 06/07/2018   11:24:37  (  79.28, -96.01)    2.00                51
 06/07/2018   12:14:49   ( -79.54,  73.37) 06/07/2018   12:15:15  ( -79.53,  73.27)    2.05                26
 06/10/2018   03:41:54   (  79.39,  20.64) 06/10/2018   03:41:29  (  79.39,  20.56)    1.82                25
 06/10/2018   04:31:16   ( -79.60,-170.28) 06/10/2018   04:32:08  ( -79.60,-170.39)    2.17                52
 06/12/2018   19:11:30   ( -72.08, -55.39) 06/12/2018   19:10:17  ( -72.41, -57.47)   79.18                73
 06/12/2018   19:58:21   (  79.45, 136.93) 06/12/2018   19:58:22  (  79.45, 136.87)    1.16                 1