Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 6 30.  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)
 06/30/2016   18:19:04   ( -79.09, -20.72) 06/30/2016   18:18:06  ( -79.09, -20.72)    0.24                58
 06/30/2016   19:08:20   (  79.44, 149.14) 06/30/2016   19:08:39  (  79.44, 149.28)    2.87                19
 07/03/2016   10:35:28   ( -79.24,  96.08) 07/03/2016   10:34:55  ( -79.24,  96.18)    2.08                33
 07/03/2016   11:24:49   (  79.42, -95.06) 07/03/2016   11:25:34  (  79.42, -95.13)    1.43                45
 07/06/2016   02:51:57   ( -79.23,-148.13) 07/06/2016   02:51:50  ( -79.22,-148.21)    1.82                 7
 07/06/2016   03:41:14   (  79.56,  21.76) 07/06/2016   03:42:24  (  79.56,  21.81)    1.05                70
 07/08/2016   18:19:03   (  79.03, 158.92) 07/08/2016   18:18:04  (  79.03, 158.85)    1.41                59
 07/08/2016   19:08:21   ( -79.40, -31.10) 07/08/2016   19:08:39  ( -79.40, -31.05)    1.04                18
 07/11/2016   10:35:27   (  79.20, -84.14) 07/11/2016   10:34:53  (  79.21, -84.06)    1.66                34
 07/11/2016   11:24:48   ( -79.42,  84.89) 07/11/2016   11:25:32  ( -79.41,  84.79)    2.14                44
 07/14/2016   02:51:53   (  79.25,  32.06) 07/14/2016   02:51:45  (  79.25,  32.00)    1.27                 8