Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2014 4 30.  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)
 04/30/2014   15:52:21   ( -77.08,   6.71) 04/30/2014   15:51:18  ( -77.08,   6.77)    1.67                63
 04/30/2014   16:41:33   (  77.70, 176.84) 04/30/2014   16:41:48  (  77.70, 176.88)    1.06                15
 05/03/2014   08:08:43   ( -77.29, 123.42) 05/03/2014   08:08:13  ( -77.29, 123.44)    0.69                30
 05/03/2014   08:57:56   (  77.85, -66.59) 05/03/2014   08:58:44  (  77.85, -66.57)    0.34                48
 05/05/2014   23:35:52   (  76.79,  69.79) 05/05/2014   23:34:39  (  76.78,  69.75)    1.27                73
 05/06/2014   00:25:07   ( -77.38,-120.35) 05/06/2014   00:25:11  ( -77.37,-120.45)    2.72                 4
 05/08/2014   15:52:12   (  77.03,-173.43) 05/08/2014   15:51:33  (  77.03,-173.48)    1.14                39
 05/08/2014   16:41:27   ( -77.61,  -3.49) 05/08/2014   16:42:05  ( -77.60,  -3.58)    2.35                38
 05/11/2014   08:08:27   (  77.42, -56.02) 05/11/2014   08:08:22  (  77.43, -55.92)    2.74                 5
 05/11/2014   08:57:43   ( -77.95, 113.86) 05/11/2014   08:58:55  ( -77.95, 113.94)    1.84                72
 05/13/2014   23:35:38   ( -76.84,-109.96) 05/13/2014   23:34:51  ( -76.84,-110.01)    1.31                47