Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 1 19.  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)
 01/22/2015   07:18:51   ( -78.10, 139.46) 01/22/2015   07:18:27  ( -78.10, 139.54)    1.83                24
 01/22/2015   08:08:08   (  78.49, -50.99) 01/22/2015   08:09:02  (  78.48, -51.09)    2.37                54
 01/24/2015   23:35:18   ( -78.20,-104.16) 01/24/2015   23:35:14  ( -78.20,-104.16)    0.13                 4
 01/25/2015   00:24:30   (  78.79,  66.54) 01/25/2015   00:25:43  (  78.80,  66.64)    2.12                73
 01/27/2015   15:02:27   (  77.83,-157.66) 01/27/2015   15:01:26  (  77.83,-157.61)    1.23                61
 01/27/2015   15:51:40   ( -78.45,  12.94) 01/27/2015   15:51:56  ( -78.45,  13.01)    1.74                16
 01/30/2015   07:18:52   (  77.96, -41.18) 01/30/2015   07:18:12  (  77.96, -41.18)    0.10                40
 01/30/2015   08:08:05   ( -78.57, 129.49) 01/30/2015   08:08:42  ( -78.58, 129.52)    0.73                37
 02/01/2015   23:35:12   (  78.28,  76.22) 02/01/2015   23:34:53  (  78.28,  76.31)    2.05                19