Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 7 21.  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)
 07/22/2016   02:51:48   ( -79.31,-147.56) 07/22/2016   02:51:41  ( -79.31,-147.48)    1.55                 7
 07/22/2016   03:41:09   (  79.50,  21.33) 07/22/2016   03:42:20  (  79.49,  21.20)    2.73                71
 07/24/2016   18:18:54   (  79.08, 159.24) 07/24/2016   18:17:56  (  79.08, 159.25)    0.22                58
 07/24/2016   19:08:16   ( -79.29, -31.81) 07/24/2016   19:08:36  ( -79.28, -31.95)    3.16                20
 07/27/2016   10:35:18   (  79.21, -84.08) 07/27/2016   10:34:46  (  79.22, -83.98)    2.29                32
 07/27/2016   11:24:39   ( -79.46,  85.18) 07/27/2016   11:25:25  ( -79.45,  85.14)    0.95                46
 07/30/2016   02:51:43   (  79.25,  32.08) 07/30/2016   02:51:38  (  79.25,  32.03)    1.25                 5
 07/30/2016   03:41:02   ( -79.57,-158.11) 07/30/2016   03:42:14  ( -79.58,-158.02)    1.91                72
 08/01/2016   18:18:49   ( -79.07, -20.81) 08/01/2016   18:17:53  ( -79.07, -20.81)    0.15                56
 08/01/2016   19:08:06   (  79.41, 148.97) 08/01/2016   19:08:27  (  79.41, 149.07)    2.17                21
 08/04/2016   10:35:15   ( -79.10,  95.28) 08/04/2016   10:34:46  ( -79.10,  95.16)    2.66                29