Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 8 11.  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)
 08/13/2015   01:13:45   (  78.76,  53.78) 08/13/2015   01:13:32  (  78.77,  53.85)    1.62                13
 08/13/2015   02:03:02   ( -79.18,-136.13) 08/13/2015   02:04:06  ( -79.19,-135.99)    2.93                64
 08/15/2015   16:40:57   ( -78.36,  -0.08) 08/15/2015   16:39:51  ( -78.36,  -0.15)    1.88                66
 08/15/2015   17:30:10   (  78.89, 170.39) 08/15/2015   17:30:21  (  78.89, 170.45)    1.30                11
 08/18/2015   08:57:21   ( -78.53, 116.65) 08/18/2015   08:56:39  ( -78.53, 116.61)    1.10                42
 08/18/2015   09:46:33   (  79.05, -72.81) 08/18/2015   09:47:08  (  79.05, -72.69)    2.56                35
 08/21/2015   01:13:43   ( -78.72,-126.44) 08/21/2015   01:13:25  ( -78.73,-126.39)    1.30                18
 08/21/2015   02:03:00   (  79.07,  43.20) 08/21/2015   02:04:00  (  79.06,  43.16)    0.90                60
 08/23/2015   16:40:51   (  78.37, 179.95) 08/23/2015   16:39:41  (  78.37, 179.92)    0.77                70