Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 12 24.  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)
 12/24/2015   09:46:13   (  79.15, -72.03) 12/24/2015   09:45:36  (  79.15, -72.03)    0.03                37
 12/24/2015   10:35:31   ( -79.50,  97.92) 12/24/2015   10:36:11  ( -79.50,  98.01)    1.80                40
 12/27/2015   02:02:38   (  79.29,  44.77) 12/27/2015   02:02:25  (  79.30,  44.86)    1.95                13
 12/27/2015   02:52:00   ( -79.49,-146.27) 12/27/2015   02:53:05  ( -79.48,-146.40)    2.84                65
 12/29/2015   17:29:45   ( -79.11,  -8.14) 12/29/2015   17:28:39  ( -79.12,  -8.01)    2.93                66
 12/29/2015   18:19:04   (  79.37, 161.21) 12/29/2015   18:19:16  (  79.38, 161.22)    0.28                12
 01/01/2016   09:46:13   ( -79.10, 107.68) 01/01/2016   09:45:33  ( -79.09, 107.56)    2.74                40
 01/01/2016   10:35:29   (  79.48, -82.21) 01/01/2016   10:36:06  (  79.48, -82.15)    1.33                37
 01/04/2016   02:02:34   ( -79.30,-135.13) 01/04/2016   02:02:19  ( -79.30,-135.10)    0.60                15
 01/04/2016   02:51:54   (  79.52,  33.99) 01/04/2016   02:52:57  (  79.52,  33.93)    1.33                63
 01/06/2016   17:29:39   (  79.08, 171.73) 01/06/2016   17:28:33  (  79.08, 171.73)    0.23                66