Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 4 29.  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)
 04/30/2016   10:35:51   ( -79.16,  95.56) 04/30/2016   10:35:04  ( -79.16,  95.58)    0.47                47
 04/30/2016   11:25:11   (  79.39, -95.33) 04/30/2016   11:25:42  (  79.38, -95.42)    1.78                31
 05/03/2016   02:52:15   ( -79.26,-147.96) 05/03/2016   02:51:57  ( -79.25,-147.97)    0.37                18
 05/03/2016   03:41:35   (  79.48,  21.16) 05/03/2016   03:42:35  (  79.47,  21.05)    2.28                60
 05/05/2016   18:19:19   (  79.05, 159.03) 05/05/2016   18:18:13  (  79.05, 158.98)    1.17                66
 05/05/2016   19:08:38   ( -79.38, -31.27) 05/05/2016   19:08:49  ( -79.38, -31.27)    0.24                11
 05/08/2016   10:35:41   (  79.21, -84.12) 05/08/2016   10:35:04  (  79.21, -84.10)    0.46                37
 05/08/2016   11:25:00   ( -79.49,  85.38) 05/08/2016   11:25:40  ( -79.49,  85.45)    1.38                40
 05/11/2016   02:52:02   (  79.35,  32.69) 05/11/2016   02:51:54  (  79.36,  32.83)    3.09                 8