Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2014 4 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)
 04/22/2014   16:41:39   ( -77.68,  -3.23) 04/22/2014   16:41:35  ( -77.69,  -3.17)    1.50                 4
 04/22/2014   17:30:36   (  78.92, 170.53) 04/22/2014   17:31:50  (  78.84, 170.70)    9.10                74
 04/25/2014   08:08:55   (  77.09, -57.37) 04/25/2014   08:08:03  (  77.08, -57.47)    2.95                52
 04/25/2014   08:58:06   ( -77.85, 113.36) 04/25/2014   08:58:30  ( -77.85, 113.43)    1.75                24
 04/28/2014   00:25:20   (  77.41,  59.75) 04/28/2014   00:24:55  (  77.42,  59.78)    0.69                25
 04/28/2014   01:14:37   ( -77.90,-130.57) 04/28/2014   01:15:29  ( -77.89,-130.61)    0.88                52
 04/30/2014   15:53:43   ( -73.66,  -3.00) 04/30/2014   15:52:29  ( -73.79,  -3.69)   25.80                74
 04/30/2014   16:41:48   (  77.61, 176.42) 04/30/2014   16:41:50  (  77.62, 176.48)    1.43                 2
 05/03/2014   08:09:06   ( -77.12, 122.67) 05/03/2014   08:08:17  ( -77.12, 122.68)    0.40                49