Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 3 13.  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)
 03/16/2017   11:25:12   (  79.46, -94.70) 03/16/2017   11:24:26  (  79.45, -94.76)    1.47                46
 03/16/2017   12:14:32   ( -79.73,  74.90) 03/16/2017   12:15:03  ( -79.73,  74.94)    0.84                31
 03/19/2017   03:41:39   (  79.56,  21.85) 03/19/2017   03:41:16  (  79.55,  21.84)    0.26                23
 03/19/2017   04:31:00   ( -79.79,-168.79) 03/19/2017   04:31:54  ( -79.80,-168.68)    2.29                54
 03/21/2017   19:11:13   ( -72.46, -54.68) 03/21/2017   19:10:00  ( -72.78, -56.74)   77.20                73
 03/21/2017   19:58:06   (  79.65, 138.37) 03/21/2017   19:58:06  (  79.65, 138.45)    1.72                 0
 03/24/2017   11:25:14   ( -79.48,  85.45) 03/24/2017   11:24:20  ( -79.49,  85.54)    1.83                54
 03/24/2017   12:14:35   (  79.66,-105.68) 03/24/2017   12:14:59  (  79.65,-105.78)    2.17                24
 03/27/2017   03:41:42   ( -79.49,-158.62) 03/27/2017   03:41:12  ( -79.49,-158.68)    1.30                30