Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 6 6.  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)
 06/07/2018   11:25:27   (  79.35, -95.52) 06/07/2018   11:24:35  (  79.36, -95.43)    1.96                52
 06/07/2018   12:14:48   ( -79.59,  73.75) 06/07/2018   12:15:13  ( -79.60,  73.84)    2.04                25
 06/10/2018   03:41:54   (  79.42,  20.81) 06/10/2018   03:41:28  (  79.42,  20.87)    1.30                26
 06/10/2018   04:31:15   ( -79.66,-169.88) 06/10/2018   04:32:06  ( -79.66,-169.83)    1.02                51
 06/12/2018   19:58:20   (  79.52, 137.38) 06/12/2018   19:58:20  (  79.52, 137.44)    1.16                 0
 06/12/2018   20:45:21   ( -81.55,   0.04) 06/12/2018   20:46:34  ( -80.81,  -1.26)   85.20                73
 06/15/2018   11:25:27   ( -79.33,  84.33) 06/15/2018   11:24:35  ( -79.33,  84.39)    1.47                52
 06/15/2018   12:14:46   (  79.58,-106.33) 06/15/2018   12:15:12  (  79.58,-106.27)    1.53                26
 06/18/2018   03:41:53   ( -79.42,-159.16) 06/18/2018   03:41:27  ( -79.43,-159.06)    2.11                26
 06/18/2018   04:31:12   (  79.67,  10.19) 06/18/2018   04:32:04  (  79.68,  10.31)    2.42                52
 06/20/2018   19:10:53   (  73.87, 128.14) 06/20/2018   19:09:40  (  74.14, 126.42)   60.94                73