Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 2 16.  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)
 02/18/2016   10:36:02   (  79.34, -83.12) 02/18/2016   10:35:20  (  79.35, -83.08)    0.88                42
 02/18/2016   11:25:22   ( -79.62,  86.40) 02/18/2016   11:25:57  ( -79.62,  86.49)    1.97                35
 02/21/2016   02:52:28   (  79.43,  33.35) 02/21/2016   02:52:09  (  79.44,  33.42)    1.54                19
 02/21/2016   03:41:48   ( -79.70,-157.08) 02/21/2016   03:42:46  ( -79.71,-156.94)    2.91                58
 02/23/2016   18:19:35   ( -79.24, -19.65) 02/23/2016   18:18:22  ( -79.25, -19.58)    1.53                73
 02/23/2016   19:08:55   (  79.46, 149.45) 02/23/2016   19:09:00  (  79.46, 149.37)    1.55                 5
 02/26/2016   10:35:59   ( -79.33,  96.82) 02/26/2016   10:35:10  ( -79.34,  96.88)    1.24                49
 02/26/2016   11:25:19   (  79.55, -94.07) 02/26/2016   11:25:48  (  79.54, -94.16)    1.97                29
 02/29/2016   02:52:25   ( -79.36,-147.08) 02/29/2016   02:52:01  ( -79.36,-147.20)    2.75                24