Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 6 26.  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)
 06/28/2015   16:41:11   ( -78.46,   0.38) 06/28/2015   16:40:29  ( -78.45,   0.38)    0.21                42
 06/28/2015   17:30:26   (  78.91, 170.48) 06/28/2015   17:31:01  (  78.91, 170.53)    1.14                35
 07/01/2015   08:57:34   ( -78.70, 117.54) 07/01/2015   08:57:16  ( -78.71, 117.67)    3.11                18
 07/01/2015   09:46:54   (  78.94, -73.48) 07/01/2015   09:47:54  (  78.93, -73.57)    1.90                60
 07/04/2015   00:24:45   (  78.23,  63.39) 07/04/2015   00:23:35  (  78.23,  63.35)    0.95                70
 07/04/2015   01:13:59   ( -78.80,-126.03) 07/04/2015   01:14:06  ( -78.80,-125.95)    1.95                 7
 07/06/2015   16:41:09   (  78.40,-179.88) 07/06/2015   16:40:24  (  78.40,-179.90)    0.48                45
 07/06/2015   17:30:24   ( -78.92,  -9.44) 07/06/2015   17:30:56  ( -78.93,  -9.33)    2.67                32
 07/09/2015   08:57:31   (  78.64, -62.75) 07/09/2015   08:57:11  (  78.65, -62.67)    1.99                20