Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 3 28.  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)
 03/30/2015   00:24:51   (  78.62,  65.65) 03/30/2015   00:24:37  (  78.61,  65.56)    2.13                14
 03/30/2015   01:14:07   ( -79.08,-124.06) 03/30/2015   01:15:10  ( -79.08,-124.08)    0.66                63
 04/01/2015   15:51:59   ( -78.40,  12.73) 04/01/2015   15:50:50  ( -78.40,  12.76)    0.53                69
 04/01/2015   16:41:12   (  78.92,-176.77) 04/01/2015   16:41:20  (  78.93,-176.64)    2.90                 8
 04/04/2015   08:08:21   ( -78.64, 129.87) 04/04/2015   08:07:34  ( -78.64, 129.98)    2.55                47
 04/04/2015   08:57:39   (  78.95, -60.75) 04/04/2015   08:58:10  (  78.94, -60.78)    0.91                31
 04/07/2015   00:24:47   ( -78.76,-113.58) 04/07/2015   00:24:22  ( -78.76,-113.49)    2.05                25
 04/07/2015   01:14:05   (  79.06,  55.83) 04/07/2015   01:14:58  (  79.06,  55.78)    1.09                53
 04/09/2015   16:41:16   ( -78.77,   2.34) 04/09/2015   16:41:13  ( -78.77,   2.30)    1.04                 3