Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 6 30.  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)
 07/01/2015   08:57:34   ( -78.67, 117.40) 07/01/2015   08:57:16  ( -78.68, 117.51)    2.62                18
 07/01/2015   09:46:54   (  78.91, -73.60) 07/01/2015   09:47:54  (  78.91, -73.72)    2.63                60
 07/04/2015   00:24:42   (  78.39,  64.18) 07/04/2015   00:23:31  (  78.40,  64.30)    2.91                71
 07/04/2015   01:14:01   ( -78.74,-126.34) 07/04/2015   01:14:08  ( -78.74,-126.35)    0.30                 7
 07/06/2015   16:41:09   (  78.45,-179.64) 07/06/2015   16:40:23  (  78.46,-179.61)    0.88                46
 07/06/2015   17:30:28   ( -78.80, -10.13) 07/06/2015   17:31:00  ( -78.80, -10.22)    2.15                32
 07/09/2015   08:57:34   (  78.59, -63.06) 07/09/2015   08:57:13  (  78.59, -63.06)    0.21                21
 07/09/2015   09:46:54   ( -78.89, 106.27) 07/09/2015   09:47:51  ( -78.89, 106.13)    3.12                57
 07/12/2015   00:24:44   ( -78.22,-116.67) 07/12/2015   00:23:31  ( -78.22,-116.72)    1.01                73