Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 1 28.  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)
 01/30/2015   07:18:49   (  78.14, -40.32) 01/30/2015   07:18:08  (  78.15, -40.20)    2.87                41
 01/30/2015   08:08:09   ( -78.45, 128.85) 01/30/2015   08:08:46  ( -78.44, 128.73)    2.88                37
 02/01/2015   23:35:17   (  78.08,  75.28) 02/01/2015   23:34:58  (  78.07,  75.18)    2.42                19
 02/02/2015   00:24:31   ( -78.64,-114.23) 02/02/2015   00:25:29  ( -78.64,-114.30)    1.80                58
 02/04/2015   15:03:05   ( -75.91,  15.35) 02/04/2015   15:01:51  ( -75.98,  14.96)   13.74                74
 02/04/2015   15:51:35   (  78.46,-166.93) 02/04/2015   15:51:37  (  78.47,-166.84)    1.89                 2
 02/07/2015   07:18:45   ( -78.06, 139.35) 02/07/2015   07:17:52  ( -78.07, 139.42)    1.71                53
 02/07/2015   08:08:02   (  78.43, -51.18) 02/07/2015   08:08:27  (  78.43, -51.29)    2.57                25
 02/09/2015   23:35:07   ( -78.22,-103.98) 02/09/2015   23:34:37  ( -78.23,-103.95)    0.77                30