Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 3 26.  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)
 03/27/2015   08:08:25   (  78.51, -50.79) 03/27/2015   08:07:48  (  78.51, -50.84)    1.00                37
 03/27/2015   08:57:41   ( -78.98, 119.45) 03/27/2015   08:58:21  ( -78.98, 119.47)    0.64                40
 03/30/2015   00:24:48   (  78.66,  65.86) 03/30/2015   00:24:36  (  78.65,  65.79)    1.72                12
 03/30/2015   01:14:04   ( -79.12,-123.82) 03/30/2015   01:15:09  ( -79.12,-123.83)    0.25                65
 04/01/2015   15:51:54   ( -78.41,  12.81) 04/01/2015   15:50:50  ( -78.40,  12.77)    0.85                64
 04/01/2015   16:41:07   (  78.93,-176.72) 04/01/2015   16:41:20  (  78.93,-176.63)    2.02                13
 04/04/2015   08:08:12   ( -78.65, 129.99) 04/04/2015   08:07:34  ( -78.65, 130.02)    0.71                38
 04/04/2015   08:57:30   (  78.96, -60.64) 04/04/2015   08:58:10  (  78.95, -60.75)    2.28                40
 04/07/2015   00:24:32   ( -78.81,-113.21) 04/07/2015   00:24:21  ( -78.81,-113.18)    0.50                11