Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 10 14.  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)
 10/15/2017   19:08:20   ( -79.53, -30.12) 10/15/2017   19:08:12  ( -79.53, -30.10)    0.55                 8
 10/15/2017   19:57:39   (  79.77, 139.30) 10/15/2017   19:58:49  (  79.78, 139.36)    1.18                70
 10/18/2017   10:35:28   (  79.28, -83.54) 10/18/2017   10:34:27  (  79.28, -83.64)    2.13                61
 10/18/2017   11:24:46   ( -79.65,  86.59) 10/18/2017   11:25:01  ( -79.65,  86.69)    2.06                15
 10/21/2017   02:51:53   (  79.40,  33.08) 10/21/2017   02:51:15  (  79.39,  32.96)    2.54                38
 10/21/2017   03:41:12   ( -79.72,-157.00) 10/21/2017   03:41:50  ( -79.72,-156.93)    1.50                38
 10/23/2017   19:08:18   (  79.54, 149.93) 10/23/2017   19:08:02  (  79.54, 149.99)    1.23                16
 10/23/2017   19:57:40   ( -79.75, -40.91) 10/23/2017   19:58:41  ( -79.74, -40.97)    1.22                61
 10/26/2017   10:35:26   ( -79.35,  96.91) 10/26/2017   10:34:14  ( -79.36,  97.00)    1.90                72