Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 1 3.  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)
 01/06/2017   02:51:47   (  79.55,  34.21) 01/06/2017   02:51:15  (  79.55,  34.25)    0.68                32
 01/06/2017   03:41:07   ( -79.81,-156.23) 01/06/2017   03:41:52  ( -79.81,-156.10)    2.63                45
 01/08/2017   19:08:16   (  79.56, 150.18) 01/08/2017   19:08:09  (  79.55, 150.07)    2.25                 7
 01/08/2017   19:57:36   ( -79.82, -40.25) 01/08/2017   19:58:46  ( -79.82, -40.27)    0.49                70
 01/11/2017   10:35:23   ( -79.42,  97.44) 01/11/2017   10:34:23  ( -79.41,  97.36)    1.84                60
 01/11/2017   11:24:41   (  79.71, -92.82) 01/11/2017   11:24:58  (  79.72, -92.73)    2.05                17
 01/14/2017   02:51:47   ( -79.57,-145.63) 01/14/2017   02:51:11  ( -79.58,-145.49)    2.95                36
 01/14/2017   03:41:07   (  79.78,  23.60) 01/14/2017   03:41:49  (  79.78,  23.64)    0.77                42
 01/16/2017   19:08:14   ( -79.64, -29.26) 01/16/2017   19:08:03  ( -79.64, -29.16)    2.18                11