Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 1 23.  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)
 01/24/2015   23:35:18   ( -78.18,-104.27) 01/24/2015   23:35:14  ( -78.18,-104.30)    0.78                 4
 01/25/2015   00:24:30   (  78.77,  66.43) 01/25/2015   00:25:43  (  78.77,  66.50)    1.58                73
 01/27/2015   15:02:29   (  77.76,-157.93) 01/27/2015   15:01:28  (  77.77,-157.92)    0.11                61
 01/27/2015   15:51:42   ( -78.39,  12.64) 01/27/2015   15:51:58  ( -78.39,  12.65)    0.28                16
 01/30/2015   07:18:54   (  77.90, -41.42) 01/30/2015   07:18:14  (  77.90, -41.50)    1.84                40
 01/30/2015   08:08:08   ( -78.48, 128.99) 01/30/2015   08:08:45  ( -78.48, 128.93)    1.37                37
 02/01/2015   23:35:15   (  78.14,  75.58) 02/01/2015   23:34:56  (  78.14,  75.56)    0.43                19
 02/02/2015   00:24:29   ( -78.71,-113.89) 02/02/2015   00:25:27  ( -78.71,-113.87)    0.43                58
 02/04/2015   15:02:47   ( -76.74,  18.08) 02/04/2015   15:01:33  ( -76.79,  17.86)    7.70                74
 02/04/2015   15:51:38   (  78.31,-167.73) 02/04/2015   15:51:41  (  78.30,-167.80)    1.62                 3