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   ( -79.03, -21.04) 09/18/2016   18:17:33  ( -79.03, -20.97)    1.53                74
 09/18/2016   19:08:06   (  79.30, 148.31) 09/18/2016   19:08:10  (  79.30, 148.31)    0.12                 4
 09/21/2016   10:35:15   ( -79.04,  94.91) 09/21/2016   10:34:31  ( -79.03,  94.80)    2.49                44
 09/21/2016   11:24:29   (  79.46, -94.73) 09/21/2016   11:25:02  (  79.47, -94.60)    2.64                33
 09/24/2016   02:51:37   ( -79.24,-147.96) 09/24/2016   02:51:22  ( -79.24,-147.93)    0.65                15
 09/24/2016   03:40:56   (  79.50,  21.43) 09/24/2016   03:41:59  (  79.50,  21.41)    0.46                63
 09/26/2016   18:18:44   (  78.99, 158.72) 09/26/2016   18:17:42  (  78.98, 158.63)    2.24                62
 09/26/2016   19:08:03   ( -79.32, -31.60) 09/26/2016   19:08:18  ( -79.31, -31.67)    1.75                15
 09/29/2016   10:35:06   (  79.21, -84.01) 09/29/2016   10:34:33  (  79.22, -83.89)    2.50                33