Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 6 16.  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)
 06/18/2015   00:24:48   (  78.24,  63.46) 06/18/2015   00:23:45  (  78.24,  63.41)    1.47                63
 06/18/2015   01:14:03   ( -78.76,-126.22) 06/18/2015   01:14:17  ( -78.76,-126.19)    0.55                14
 06/20/2015   16:41:07   (  78.43,-179.73) 06/20/2015   16:40:33  (  78.43,-179.76)    0.74                34
 06/20/2015   17:30:22   ( -78.94,  -9.31) 06/20/2015   17:31:05  ( -78.94,  -9.24)    1.57                43
 06/23/2015   08:57:23   (  78.75, -62.12) 06/23/2015   08:57:18  (  78.76, -61.98)    3.08                 5
 06/23/2015   09:46:44   ( -79.01, 107.00) 06/23/2015   09:47:57  ( -79.01, 106.96)    0.66                73
 06/26/2015   00:24:28   ( -78.44,-115.52) 06/26/2015   00:23:36  ( -78.44,-115.46)    1.34                52
 06/26/2015   01:13:46   (  78.76,  53.80) 06/26/2015   01:14:12  (  78.75,  53.69)    2.62                26
 06/28/2015   16:40:49   ( -78.51,   0.72) 06/28/2015   16:40:28  ( -78.50,   0.66)    1.34                21