Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 9 16.  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   18:19:07   ( -78.20, -25.47) 09/18/2016   18:17:53  ( -78.27, -25.76)    9.54                74
 09/18/2016   19:08:04   (  79.39, 148.87) 09/18/2016   19:08:07  (  79.39, 148.97)    2.11                 3
 09/21/2016   10:35:13   ( -79.09,  95.21) 09/21/2016   10:34:27  ( -79.08,  95.09)    2.73                46
 09/21/2016   11:24:29   (  79.47, -94.67) 09/21/2016   11:25:00  (  79.48, -94.55)    2.75                31
 09/24/2016   02:51:37   ( -79.25,-147.90) 09/24/2016   02:51:18  ( -79.25,-147.87)    0.60                19
 09/24/2016   03:40:56   (  79.51,  21.49) 09/24/2016   03:41:55  (  79.51,  21.48)    0.14                59
 09/26/2016   18:18:42   (  79.08, 159.27) 09/26/2016   18:17:33  (  79.08, 159.31)    0.91                69
 09/26/2016   19:08:02   ( -79.37, -31.27) 09/26/2016   19:08:10  ( -79.37, -31.25)    0.50                 8
 09/29/2016   10:35:09   (  79.11, -84.68) 09/29/2016   10:34:27  (  79.10, -84.79)    2.55                42