Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 3 25.  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)
 03/26/2016   19:08:56   (  79.42, 149.12) 03/26/2016   19:08:35  (  79.43, 149.23)    2.32                21
 03/26/2016   19:58:18   ( -79.62, -41.87) 03/26/2016   19:59:15  ( -79.62, -41.90)    0.56                57
 03/29/2016   10:36:06   ( -79.20,  95.88) 03/29/2016   10:34:54  ( -79.20,  95.90)    0.56                72
 03/29/2016   11:25:24   (  79.50, -94.49) 03/29/2016   11:25:29  (  79.51, -94.38)    2.42                 5
 04/01/2016   02:52:33   ( -79.31,-147.54) 04/01/2016   02:51:47  ( -79.31,-147.47)    1.42                46
 04/01/2016   03:41:54   (  79.49,  21.33) 04/01/2016   03:42:26  (  79.48,  21.19)    2.85                32
 04/03/2016   19:09:02   ( -79.33, -31.51) 04/03/2016   19:08:43  ( -79.32, -31.64)    2.99                19
 04/03/2016   19:58:19   (  79.63, 138.15) 04/03/2016   19:59:17  (  79.62, 138.12)    0.71                58
 04/06/2016   10:36:08   (  79.14, -84.53) 04/06/2016   10:34:58  (  79.12, -84.66)    3.08                70