Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 4 5.  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)
 04/06/2016   10:36:06   (  79.21, -84.02) 04/06/2016   10:34:56  (  79.22, -83.99)    0.77                70
 04/06/2016   11:25:27   ( -79.45,  85.19) 04/06/2016   11:25:35  ( -79.44,  85.09)    2.22                 8
 04/09/2016   02:52:33   (  79.29,  32.35) 04/09/2016   02:51:50  (  79.29,  32.34)    0.24                43
 04/09/2016   03:41:52   ( -79.60,-157.88) 04/09/2016   03:42:26  ( -79.61,-157.74)    3.04                34
 04/11/2016   19:08:58   (  79.39, 148.92) 04/11/2016   19:08:42  (  79.40, 148.91)    0.10                16
 04/11/2016   19:58:17   ( -79.70, -41.26) 04/11/2016   19:59:18  ( -79.71, -41.11)    3.05                61
 04/14/2016   10:36:06   ( -79.19,  95.83) 04/14/2016   10:35:00  ( -79.19,  95.77)    1.42                66
 04/14/2016   11:25:23   (  79.53, -94.30) 04/14/2016   11:25:34  (  79.53, -94.24)    1.24                11
 04/17/2016   02:52:30   ( -79.36,-147.22) 04/17/2016   02:51:51  ( -79.36,-147.18)    0.78                39