Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 3 31.  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)
 04/01/2017   11:25:18   (  79.36, -95.52) 04/01/2017   11:24:20  (  79.37, -95.39)    2.62                58
 04/01/2017   12:14:40   ( -79.56,  73.49) 04/01/2017   12:15:00  ( -79.56,  73.47)    0.75                20
 04/04/2017   03:41:47   (  79.35,  20.27) 04/04/2017   03:41:17  (  79.34,  20.15)    2.61                30
 04/04/2017   04:31:07   ( -79.62,-170.18) 04/04/2017   04:31:54  ( -79.63,-170.16)    0.64                47
 04/06/2017   19:58:11   (  79.48, 137.03) 04/06/2017   19:58:08  (  79.48, 137.01)    0.29                 3
 04/06/2017   20:47:14   ( -80.33, -48.44) 04/06/2017   20:48:28  ( -80.25, -48.15)   10.93                74
 04/09/2017   11:25:18   ( -79.31,  84.11) 04/09/2017   11:24:25  ( -79.31,  84.14)    0.65                53
 04/09/2017   12:14:36   (  79.60,-106.26) 04/09/2017   12:15:00  (  79.61,-106.11)    3.19                24
 04/12/2017   03:41:44   ( -79.38,-159.51) 04/12/2017   03:41:19  ( -79.38,-159.57)    1.20                25
 04/12/2017   04:31:02   (  79.67,  10.14) 04/12/2017   04:31:54  (  79.67,  10.21)    1.39                52
 04/14/2017   19:09:33   (  77.30, 138.17) 04/14/2017   19:08:19  (  77.46, 137.51)   23.67                74