Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2014 4 1.  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)
 04/04/2014   00:25:12   ( -77.43,-120.08) 04/04/2014   00:24:07  ( -77.41,-120.19)    2.90                65
 04/04/2014   01:14:22   (  78.13,  50.62) 04/04/2014   01:14:34  (  78.13,  50.68)    1.45                12
 04/06/2014   16:41:31   ( -77.69,  -3.07) 04/06/2014   16:41:01  ( -77.68,  -3.16)    2.30                30
 04/06/2014   17:30:42   (  78.33, 167.52) 04/06/2014   17:31:29  (  78.34, 167.64)    2.72                47
 04/09/2014   08:08:33   (  77.46, -55.80) 04/09/2014   08:07:22  (  77.46, -55.77)    0.66                71
 04/09/2014   08:57:49   ( -77.98, 114.07) 04/09/2014   08:57:55  ( -77.98, 114.10)    0.74                 6
 04/12/2014   00:24:51   (  77.67,  61.00) 04/12/2014   00:24:18  (  77.67,  61.00)    0.13                33
 04/12/2014   01:14:07   ( -78.19,-129.05) 04/12/2014   01:14:51  ( -78.18,-129.05)    0.20                44
 04/14/2014   15:51:53   ( -77.40,   8.13) 04/14/2014   15:50:41  ( -77.40,   8.19)    1.69                72