Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 2 22.  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)
 02/23/2015   07:19:02   ( -78.05, 139.28) 02/23/2015   07:17:48  ( -78.05, 139.29)    0.31                74
 02/23/2015   08:08:14   (  78.64, -50.09) 02/23/2015   08:08:17  (  78.65, -50.02)    1.59                 3
 02/25/2015   23:35:45   ( -78.03,-104.96) 02/25/2015   23:34:42  ( -78.02,-105.08)    2.95                63
 02/26/2015   00:24:57   (  78.59,  65.44) 02/26/2015   00:25:11  (  78.58,  65.34)    2.31                14
 02/28/2015   15:52:32   ( -78.16,  11.42) 02/28/2015   15:51:31  ( -78.15,  11.37)    1.15                61
 02/28/2015   16:41:46   (  78.67,-178.34) 02/28/2015   16:42:02  (  78.67,-178.39)    1.12                16
 03/03/2015   08:09:31   ( -78.16, 127.19) 03/03/2015   08:08:24  ( -78.16, 127.17)    0.32                67
 03/03/2015   08:58:45   (  78.67, -62.56) 03/03/2015   08:58:55  (  78.67, -62.60)    0.98                10
 03/06/2015   01:15:55   (  78.56,  52.56) 03/06/2015   01:15:51  (  78.55,  52.48)    1.84                 4
 03/06/2015   02:05:09   ( -79.13,-136.53) 03/06/2015   02:06:21  ( -79.14,-136.41)    2.61                72
 03/08/2015   17:33:08   (  78.62, 168.58) 03/08/2015   17:32:41  (  78.63, 168.69)    2.56                27