Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 1 1.  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)
 01/03/2018   19:08:53   ( -79.55, -29.87) 01/03/2018   19:07:54  ( -79.56, -29.83)    0.84                59
 01/03/2018   19:58:12   (  79.82, 139.72) 01/03/2018   19:58:30  (  79.82, 139.84)    2.47                18
 01/06/2018   11:25:22   ( -79.62,  86.44) 01/06/2018   11:24:46  ( -79.61,  86.42)    0.48                36
 01/06/2018   12:14:41   (  79.87,-103.96) 01/06/2018   12:15:22  (  79.87,-103.89)    1.47                41
 01/09/2018   03:41:50   ( -79.67,-157.27) 01/09/2018   03:41:37  ( -79.67,-157.33)    1.21                13
 01/09/2018   04:31:09   (  79.92,  12.33) 01/09/2018   04:32:13  (  79.93,  12.38)    1.07                64
 01/11/2018   19:08:56   (  79.57, 150.23) 01/11/2018   19:07:48  (  79.58, 150.34)    2.37                68
 01/11/2018   19:58:18   ( -79.76, -40.73) 01/11/2018   19:58:28  ( -79.75, -40.80)    1.35                10
 01/14/2018   11:25:23   (  79.69, -93.02) 01/14/2018   11:24:38  (  79.69, -92.87)    3.08                45