Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 9 8.  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)
 09/10/2016   19:08:09   ( -79.27, -31.92) 09/10/2016   19:08:08  ( -79.27, -31.91)    0.39                 1
 09/10/2016   19:55:16   (  81.72,-173.08) 09/10/2016   19:56:29  (  81.07,-173.88)   73.94                73
 09/13/2016   10:35:15   (  79.05, -85.01) 09/13/2016   10:34:21  (  79.06, -85.01)    0.21                54
 09/13/2016   11:24:34   ( -79.38,  84.68) 09/13/2016   11:24:57  ( -79.38,  84.71)    0.81                23
 09/16/2016   02:51:40   (  79.20,  31.74) 09/16/2016   02:51:10  (  79.20,  31.82)    1.61                30
 09/16/2016   03:41:00   ( -79.48,-158.77) 09/16/2016   03:41:47  ( -79.49,-158.67)    2.23                47
 09/18/2016   19:08:08   (  79.21, 147.72) 09/18/2016   19:08:03  (  79.20, 147.61)    2.37                 5
 09/18/2016   19:57:28   ( -79.49, -42.78) 09/18/2016   19:58:40  ( -79.49, -42.86)    1.80                72
 09/21/2016   10:35:13   ( -79.11,  95.34) 09/21/2016   10:34:14  ( -79.12,  95.47)    2.75                59