Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 6 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)
 07/01/2018   11:25:23   ( -79.34,  84.41) 07/01/2018   11:24:32  ( -79.35,  84.52)    2.48                51
 07/01/2018   12:14:42   (  79.59,-106.22) 07/01/2018   12:15:09  (  79.60,-106.12)    2.15                27
 07/04/2018   03:41:52   ( -79.34,-159.71) 07/04/2018   03:41:27  ( -79.34,-159.78)    1.54                25
 07/04/2018   04:31:11   (  79.59,   9.65) 07/04/2018   04:32:04  (  79.58,   9.56)    1.94                53
 07/06/2018   19:11:20   (  72.31, 125.02) 07/06/2018   19:10:07  (  72.64, 123.05)   75.59                73
 07/06/2018   19:58:17   ( -79.49, -42.81) 07/06/2018   19:58:17  ( -79.49, -42.75)    1.23                 0
 07/09/2018   11:25:25   (  79.23, -96.30) 07/09/2018   11:24:34  (  79.23, -96.39)    1.83                51
 07/09/2018   12:14:46   ( -79.48,  73.02) 07/09/2018   12:15:12  ( -79.48,  72.92)    2.04                26
 07/12/2018   03:41:49   (  79.37,  20.52) 07/12/2018   03:41:23  (  79.38,  20.58)    1.45                26