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   19:08:21   ( -79.61, -29.49) 10/31/2017   19:08:15  ( -79.62, -29.45)    0.87                 6
 10/31/2017   19:57:41   (  79.82, 139.72) 10/31/2017   19:58:53  (  79.82, 139.71)    0.31                72
 11/03/2017   10:35:28   (  79.43, -82.53) 11/03/2017   10:34:29  (  79.44, -82.50)    0.84                59
 11/03/2017   11:24:49   ( -79.67,  86.82) 11/03/2017   11:25:07  ( -79.68,  86.86)    1.00                18
 11/06/2017   02:51:55   (  79.56,  34.23) 11/06/2017   02:51:20  (  79.56,  34.31)    1.69                35
 11/06/2017   03:41:16   ( -79.80,-156.37) 11/06/2017   03:41:58  ( -79.80,-156.27)    2.00                42
 11/08/2017   19:08:26   (  79.53, 149.89) 11/08/2017   19:08:16  (  79.52, 149.74)    2.99                10
 11/08/2017   19:57:47   ( -79.77, -40.70) 11/08/2017   19:58:54  ( -79.77, -40.83)    2.48                67
 11/11/2017   10:35:33   ( -79.43,  97.48) 11/11/2017   10:34:29  ( -79.44,  97.54)    1.43                64