Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 10 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)
 10/18/2015   17:29:55   (  78.92, 170.61) 10/18/2015   17:29:21  (  78.91, 170.57)    0.90                34
 10/18/2015   18:19:13   ( -79.28, -19.52) 10/18/2015   18:19:56  ( -79.29, -19.47)    1.16                43
 10/21/2015   09:46:23   (  78.97, -73.19) 10/21/2015   09:46:13  (  78.97, -73.29)    2.23                10
 10/21/2015   10:35:40   ( -79.38,  96.97) 10/21/2015   10:36:47  ( -79.38,  96.98)    0.07                67
 10/24/2015   01:13:29   ( -78.86,-125.61) 10/24/2015   01:12:25  ( -78.87,-125.50)    2.57                64
 10/24/2015   02:02:48   (  79.13,  43.65) 10/24/2015   02:03:02  (  79.13,  43.58)    1.71                14
 10/26/2015   17:29:57   ( -78.89,  -9.57) 10/26/2015   17:29:18  ( -78.89,  -9.63)    1.26                39
 10/26/2015   18:19:13   (  79.28, 160.43) 10/26/2015   18:19:51  (  79.28, 160.46)    0.72                38
 10/29/2015   09:46:18   ( -79.14, 107.82) 10/29/2015   09:46:03  ( -79.15, 107.96)    3.01                15