Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 9 17.  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)
 09/18/2016   18:18:47   ( -79.01, -21.13) 09/18/2016   18:17:33  ( -79.02, -21.07)    1.35                74
 09/18/2016   19:08:06   (  79.29, 148.20) 09/18/2016   19:08:10  (  79.29, 148.20)    0.18                 4
 09/21/2016   10:35:15   ( -79.03,  94.82) 09/21/2016   10:34:31  ( -79.02,  94.69)    2.75                44
 09/21/2016   11:24:30   (  79.45, -94.83) 09/21/2016   11:25:03  (  79.46, -94.71)    2.58                33
 09/24/2016   02:51:38   ( -79.23,-148.05) 09/24/2016   02:51:23  ( -79.23,-148.04)    0.28                15
 09/24/2016   03:40:57   (  79.49,  21.33) 09/24/2016   03:42:00  (  79.49,  21.30)    0.61                63
 09/26/2016   18:18:44   (  78.97, 158.64) 09/26/2016   18:17:42  (  78.96, 158.52)    2.59                62
 09/26/2016   19:08:03   ( -79.30, -31.68) 09/26/2016   19:08:18  ( -79.29, -31.78)    2.26                15
 09/29/2016   10:35:06   (  79.20, -84.09) 09/29/2016   10:34:33  (  79.21, -84.00)    1.94                33