Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 9 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)
 10/02/2017   10:35:23   (  79.38, -82.88) 10/02/2017   10:34:32  (  79.38, -82.88)    0.01                51
 10/02/2017   11:24:43   ( -79.65,  86.63) 10/02/2017   11:25:09  ( -79.66,  86.68)    1.06                26
 10/05/2017   02:51:49   (  79.50,  33.76) 10/05/2017   02:51:23  (  79.50,  33.83)    1.71                26
 10/05/2017   03:41:09   ( -79.76,-156.67) 10/05/2017   03:42:00  ( -79.77,-156.55)    2.50                51
 10/07/2017   19:08:18   (  79.52, 149.82) 10/07/2017   19:08:18  (  79.52, 149.74)    1.64                 0
 10/07/2017   19:55:35   ( -81.74,   5.86) 10/07/2017   19:56:48  ( -81.11,   5.32)   70.55                73
 10/10/2017   10:35:26   ( -79.36,  96.97) 10/10/2017   10:34:34  ( -79.35,  96.86)    2.34                52
 10/10/2017   11:24:43   (  79.69, -93.10) 10/10/2017   11:25:08  (  79.70, -92.97)    2.83                25
 10/13/2017   02:51:50   ( -79.56,-145.77) 10/13/2017   02:51:23  ( -79.57,-145.62)    3.17                27