Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 10 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)
 10/31/2017   19:08:20   ( -79.62, -29.44) 10/31/2017   19:08:14  ( -79.62, -29.40)    0.87                 6
 10/31/2017   19:57:40   (  79.83, 139.78) 10/31/2017   19:58:52  (  79.83, 139.76)    0.41                72
 11/03/2017   10:35:28   (  79.44, -82.47) 11/03/2017   10:34:29  (  79.44, -82.44)    0.65                59
 11/03/2017   11:24:49   ( -79.68,  86.88) 11/03/2017   11:25:07  ( -79.68,  86.92)    0.83                18
 11/06/2017   02:51:56   (  79.53,  34.04) 11/06/2017   02:51:21  (  79.54,  34.10)    1.30                35
 11/06/2017   03:41:17   ( -79.77,-156.57) 11/06/2017   03:41:59  ( -79.78,-156.49)    1.63                42
 11/08/2017   19:08:23   (  79.65, 150.79) 11/08/2017   19:08:12  (  79.66, 150.92)    2.75                11
 11/08/2017   19:57:47   ( -79.78, -40.61) 11/08/2017   19:58:54  ( -79.77, -40.75)    3.12                67
 11/11/2017   10:35:33   ( -79.41,  97.34) 11/11/2017   10:34:29  ( -79.42,  97.35)    0.49                64