Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 5 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)
 05/08/2016   10:35:46   (  79.17, -84.35) 05/08/2016   10:35:05  (  79.17, -84.37)    0.59                41
 05/08/2016   11:25:06   ( -79.45,  85.12) 05/08/2016   11:25:42  ( -79.46,  85.14)    0.49                36
 05/11/2016   02:52:10   (  79.31,  32.43) 05/11/2016   02:51:55  (  79.33,  32.57)    3.16                15
 05/11/2016   03:41:33   ( -79.48,-158.84) 05/11/2016   03:42:36  ( -79.47,-158.96)    2.33                63
 05/13/2016   18:19:20   ( -79.02, -21.18) 05/13/2016   18:18:15  ( -79.01, -21.28)    2.41                65
 05/13/2016   19:08:36   (  79.40, 148.88) 05/13/2016   19:08:48  (  79.41, 148.99)    2.25                12
 05/16/2016   10:35:45   ( -79.14,  95.43) 05/16/2016   10:35:07  ( -79.13,  95.35)    1.77                38
 05/16/2016   11:25:01   (  79.51, -94.47) 05/16/2016   11:25:40  (  79.52, -94.32)    3.10                39
 05/19/2016   02:52:09   ( -79.28,-147.77) 05/19/2016   02:51:58  ( -79.29,-147.75)    0.68                11