Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 7 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)
 07/09/2018   11:25:22   (  79.34, -95.60) 07/09/2018   11:24:30  (  79.35, -95.46)    3.06                52
 07/09/2018   12:14:43   ( -79.58,  73.70) 07/09/2018   12:15:08  ( -79.59,  73.84)    2.99                25
 07/12/2018   03:41:50   (  79.37,  20.47) 07/12/2018   03:41:24  (  79.36,  20.45)    0.60                26
 07/12/2018   04:31:11   ( -79.61,-170.20) 07/12/2018   04:32:02  ( -79.61,-170.21)    0.41                51
 07/14/2018   19:58:16   (  79.47, 137.05) 07/14/2018   19:58:15  (  79.48, 137.17)    2.56                 1
 07/14/2018   20:45:55   ( -81.84, -16.38) 07/14/2018   20:47:08  ( -81.28, -16.17)   61.93                73
 07/17/2018   11:25:23   ( -79.28,  84.04) 07/17/2018   11:24:30  ( -79.29,  84.09)    1.30                53
 07/17/2018   12:14:43   (  79.50,-106.90) 07/17/2018   12:15:08  (  79.50,-106.93)    0.53                25
 07/20/2018   03:41:50   ( -79.34,-159.69) 07/20/2018   03:41:23  ( -79.34,-159.73)    1.12                27