Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2014 3 19.  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)
 03/21/2014   16:42:57   ( -73.74, -15.00) 03/21/2014   16:41:43  ( -73.92, -15.96)   35.76                74
 03/21/2014   17:30:50   (  78.21, 167.03) 03/21/2014   17:30:52  (  78.20, 166.91)    2.85                 2
 03/24/2014   08:57:56   ( -77.98, 114.19) 03/24/2014   08:57:16  ( -77.98, 114.13)    1.43                40
 03/24/2014   09:47:09   (  78.53, -75.50) 03/24/2014   09:47:46  (  78.54, -75.39)    2.58                37
 03/27/2014   01:14:14   ( -78.30,-128.39) 03/27/2014   01:14:10  ( -78.31,-128.28)    2.69                 4
 03/27/2014   02:03:11   (  79.46,  46.01) 03/27/2014   02:04:25  (  79.38,  46.20)   10.44                74
 03/29/2014   16:41:20   (  77.90, 177.99) 03/29/2014   16:40:37  (  77.90, 177.93)    1.48                43
 03/29/2014   17:30:36   ( -78.40, -11.99) 03/29/2014   17:31:10  ( -78.40, -12.00)    0.27                34
 04/01/2014   08:57:35   (  78.22, -64.62) 04/01/2014   08:57:30  (  78.22, -64.57)    1.25                 5