Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 3 9.  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)
 03/11/2017   03:41:35   ( -79.66,-157.35) 03/11/2017   03:41:20  ( -79.66,-157.30)    0.98                15
 03/11/2017   04:30:57   (  79.80,  11.34) 03/11/2017   04:32:00  (  79.79,  11.23)    2.16                63
 03/13/2017   19:08:41   (  79.51, 149.84) 03/13/2017   19:07:32  (  79.51, 149.94)    1.94                69
 03/13/2017   19:58:04   ( -79.67, -41.36) 03/13/2017   19:58:13  ( -79.66, -41.47)    2.34                 9
 03/16/2017   11:25:10   (  79.52, -94.22) 03/16/2017   11:24:25  (  79.52, -94.26)    0.86                45
 03/16/2017   12:14:30   ( -79.79,  75.41) 03/16/2017   12:15:02  ( -79.79,  75.49)    1.51                32
 03/19/2017   03:41:37   (  79.56,  21.94) 03/19/2017   03:41:16  (  79.55,  21.81)    2.91                21
 03/19/2017   04:30:57   ( -79.83,-168.40) 03/19/2017   04:31:53  ( -79.83,-168.41)    0.31                56
 03/21/2017   19:09:24   ( -77.76, -39.76) 03/21/2017   19:08:10  ( -77.89, -40.43)   21.67                74