Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 4 29.  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)
 05/01/2015   01:14:41   ( -78.58,-127.26) 05/01/2015   01:14:29  ( -78.59,-127.14)    2.61                12
 05/01/2015   02:03:59   (  78.90,  42.15) 05/01/2015   02:05:05  (  78.91,  42.16)    0.38                66
 05/03/2015   16:41:54   (  78.14, 178.74) 05/03/2015   16:40:44  (  78.14, 178.76)    0.49                70
 05/03/2015   17:31:11   ( -78.59, -11.38) 05/03/2015   17:31:18  ( -78.58, -11.40)    0.76                 7
 05/06/2015   08:58:22   (  78.24, -64.88) 05/06/2015   08:57:31  (  78.24, -64.88)    0.07                51
 05/06/2015   09:47:39   ( -78.69, 105.05) 05/06/2015   09:48:05  ( -78.69, 105.01)    1.06                26
 05/09/2015   01:14:47   (  78.45,  52.03) 05/09/2015   01:14:15  (  78.46,  52.14)    2.66                32
 05/09/2015   02:04:05   ( -78.85,-138.19) 05/09/2015   02:04:50  ( -78.86,-138.11)    1.70                45
 05/11/2015   17:31:14   (  78.55, 168.41) 05/11/2015   17:31:02  (  78.56, 168.49)    2.04                12