Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 3 10.  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)
 03/10/2016   19:08:47   (  79.53, 149.99) 03/10/2016   19:08:44  (  79.53, 149.98)    0.29                 3
 03/10/2016   19:57:48   ( -80.43, -34.84) 03/10/2016   19:59:02  ( -80.34, -34.56)   11.09                74
 03/13/2016   10:35:53   ( -79.38,  97.23) 03/13/2016   10:34:57  ( -79.39,  97.30)    1.27                56
 03/13/2016   11:25:11   (  79.68, -93.05) 03/13/2016   11:25:32  (  79.68, -92.91)    2.96                21
 03/16/2016   02:52:19   ( -79.45,-146.44) 03/16/2016   02:51:48  ( -79.45,-146.44)    0.16                31
 03/16/2016   03:41:37   (  79.74,  23.29) 03/16/2016   03:42:23  (  79.74,  23.37)    1.61                46
 03/18/2016   19:08:44   ( -79.54, -29.94) 03/18/2016   19:08:38  ( -79.54, -29.92)    0.38                 6
 03/18/2016   19:58:02   (  79.82, 139.81) 03/18/2016   19:59:13  (  79.82, 139.91)    2.07                71
 03/21/2016   10:35:48   (  79.33, -83.08) 03/21/2016   10:34:50  (  79.33, -83.14)    1.12                58
 03/21/2016   11:25:06   ( -79.68,  87.01) 03/21/2016   11:25:25  ( -79.69,  87.14)    2.65                19
 03/24/2016   02:52:10   (  79.50,  33.99) 03/24/2016   02:51:37  (  79.51,  34.12)    2.84                33