Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 12 24.  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)
 12/26/2016   10:35:22   ( -79.38,  97.20) 12/26/2016   10:34:31  ( -79.38,  97.08)    2.65                51
 12/26/2016   11:24:39   (  79.68, -93.05) 12/26/2016   11:25:05  (  79.68, -93.06)    0.29                26
 12/29/2016   02:51:49   ( -79.46,-146.40) 12/29/2016   02:51:22  ( -79.46,-146.52)    2.55                27
 12/29/2016   03:41:07   (  79.76,  23.37) 12/29/2016   03:41:57  (  79.76,  23.38)    0.15                50
 12/31/2016   19:08:16   ( -79.57, -29.76) 12/31/2016   19:08:13  ( -79.57, -29.84)    1.65                 3
 12/31/2016   19:57:14   (  80.52, 146.06) 12/31/2016   19:58:28  (  80.41, 146.26)   12.36                74
 01/03/2017   10:35:23   (  79.40, -82.72) 01/03/2017   10:34:27  (  79.39, -82.81)    2.04                56
 01/03/2017   11:24:43   ( -79.67,  86.84) 01/03/2017   11:25:04  ( -79.67,  86.83)    0.22                21
 01/06/2017   02:51:49   (  79.53,  34.08) 01/06/2017   02:51:17  (  79.53,  34.10)    0.63                32