Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2014 4 17.  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)
 04/20/2014   00:25:07   ( -77.45,-120.04) 04/20/2014   00:24:40  ( -77.45,-120.08)    1.00                27
 04/20/2014   01:14:20   (  78.01,  50.01) 04/20/2014   01:15:11  (  78.00,  49.97)    1.06                51
 04/22/2014   15:52:09   (  77.22,-172.71) 04/22/2014   15:51:00  (  77.23,-172.60)    2.98                69
 04/22/2014   16:41:25   ( -77.75,  -2.91) 04/22/2014   16:41:33  ( -77.75,  -2.85)    1.52                 8
 04/25/2014   08:08:31   (  77.28, -56.55) 04/25/2014   08:07:59  (  77.28, -56.61)    1.70                32
 04/25/2014   08:57:43   ( -77.99, 114.08) 04/25/2014   08:58:27  ( -78.01, 114.20)    3.08                44
 04/27/2014   23:35:37   ( -76.88,-109.81) 04/27/2014   23:34:24  ( -76.88,-109.87)    1.64                73
 04/28/2014   00:24:47   (  77.58,  60.55) 04/28/2014   00:24:52  (  77.57,  60.51)    1.22                 5
 04/30/2014   15:51:52   ( -77.14,   7.06) 04/30/2014   15:51:17  ( -77.13,   6.96)    2.45                35