Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 7 7.  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   (  79.33, -95.65) 07/09/2018   11:24:30  (  79.34, -95.51)    3.05                52
 07/09/2018   12:14:43   ( -79.57,  73.65) 07/09/2018   12:15:08  ( -79.58,  73.79)    3.00                25
 07/12/2018   03:41:50   (  79.36,  20.43) 07/12/2018   03:41:24  (  79.36,  20.41)    0.46                26
 07/12/2018   04:31:11   ( -79.61,-170.25) 07/12/2018   04:32:02  ( -79.60,-170.26)    0.24                51
 07/14/2018   19:58:15   (  79.50, 137.27) 07/14/2018   19:58:14  (  79.51, 137.40)    2.86                 1
 07/14/2018   20:45:52   ( -81.84, -15.19) 07/14/2018   20:47:05  ( -81.27, -15.07)   63.55                73
 07/17/2018   11:25:24   ( -79.27,  83.98) 07/17/2018   11:24:31  ( -79.28,  84.06)    1.90                53
 07/17/2018   12:14:43   (  79.53,-106.69) 07/17/2018   12:15:08  (  79.53,-106.69)    0.14                25
 07/20/2018   03:41:50   ( -79.33,-159.75) 07/20/2018   03:41:23  ( -79.33,-159.76)    0.18                27