Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 11 21.  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)
 11/22/2015   09:46:12   (  79.07, -72.55) 11/22/2015   09:45:55  (  79.06, -72.64)    2.06                17
 11/22/2015   10:35:29   ( -79.47,  97.65) 11/22/2015   10:36:29  ( -79.47,  97.72)    1.65                60
 11/25/2015   01:13:21   ( -78.86,-125.56) 11/25/2015   01:12:11  ( -78.86,-125.58)    0.49                70
 11/25/2015   02:02:37   (  79.25,  44.46) 11/25/2015   02:02:44  (  79.25,  44.49)    0.59                 7
 11/27/2015   17:29:46   ( -78.98,  -8.94) 11/27/2015   17:29:01  ( -78.98,  -9.00)    1.39                45
 11/27/2015   18:19:03   (  79.33, 160.86) 11/27/2015   18:19:35  (  79.33, 160.85)    0.24                32
 11/30/2015   09:46:10   ( -79.16, 108.05) 11/30/2015   09:45:50  ( -79.17, 108.07)    0.61                20
 11/30/2015   10:35:27   (  79.50, -82.09) 11/30/2015   10:36:24  (  79.51, -81.99)    2.19                57
 12/03/2015   01:13:15   (  78.99,  55.23) 12/03/2015   01:12:03  (  79.00,  55.34)    2.38                72
 12/03/2015   02:02:36   ( -79.24,-135.57) 12/03/2015   02:02:42  ( -79.24,-135.60)    0.74                 6
 12/05/2015   17:29:42   (  79.01, 171.23) 12/05/2015   17:28:57  (  79.00, 171.13)    2.25                45