Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 1 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)
 02/01/2017   19:08:25   ( -79.61, -29.42) 02/01/2017   19:07:56  ( -79.62, -29.31)    2.46                29
 02/01/2017   19:57:45   (  79.83, 139.86) 02/01/2017   19:58:34  (  79.83, 139.91)    0.96                49
 02/04/2017   11:24:54   ( -79.65,  86.72) 02/04/2017   11:24:48  ( -79.64,  86.69)    0.80                 6
 02/04/2017   12:14:15   (  79.83,-104.28) 02/04/2017   12:15:27  (  79.82,-104.39)    2.21                72
 02/07/2017   02:52:01   (  79.52,  34.05) 02/07/2017   02:51:00  (  79.53,  34.18)    2.88                61
 02/07/2017   03:41:21   ( -79.79,-156.35) 02/07/2017   03:41:37  ( -79.79,-156.20)    2.99                16
 02/09/2017   19:08:30   (  79.58, 150.37) 02/09/2017   19:07:52  (  79.58, 150.41)    0.82                38
 02/09/2017   19:57:51   ( -79.81, -40.27) 02/09/2017   19:58:30  ( -79.81, -40.22)    0.99                39
 02/12/2017   11:24:59   (  79.64, -93.34) 02/12/2017   11:24:44  (  79.64, -93.37)    0.68                15