Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 6 25.  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)
 06/26/2015   00:24:47   ( -78.23,-116.61) 06/26/2015   00:23:41  ( -78.22,-116.67)    1.62                66
 06/26/2015   01:14:01   (  78.73,  53.63) 06/26/2015   01:14:12  (  78.73,  53.61)    0.36                11
 06/28/2015   16:41:11   ( -78.45,   0.36) 06/28/2015   16:40:29  ( -78.45,   0.35)    0.21                42
 06/28/2015   17:30:26   (  78.90, 170.44) 06/28/2015   17:31:01  (  78.90, 170.49)    1.19                35
 07/01/2015   08:57:38   ( -78.52, 116.61) 07/01/2015   08:57:21  ( -78.51, 116.50)    2.67                17
 07/01/2015   09:46:53   (  78.97, -73.30) 07/01/2015   09:47:53  (  78.96, -73.35)    1.37                60
 07/04/2015   00:24:44   (  78.30,  63.74) 07/04/2015   00:23:34  (  78.30,  63.76)    0.38                70
 07/04/2015   01:14:03   ( -78.66,-126.78) 07/04/2015   01:14:11  ( -78.65,-126.91)    3.07                 8
 07/06/2015   16:41:06   (  78.51,-179.33) 07/06/2015   16:40:21  (  78.52,-179.25)    1.90                45
 07/06/2015   17:30:26   ( -78.82, -10.01) 07/06/2015   17:30:59  ( -78.82, -10.07)    1.29                33
 07/09/2015   08:57:32   (  78.57, -63.13) 07/09/2015   08:57:13  (  78.57, -63.15)    0.57                19