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, -94.69) 03/16/2017   11:24:26  (  79.46, -94.75)    1.52                46
 03/16/2017   12:14:32   ( -79.73,  74.91) 03/16/2017   12:15:03  ( -79.73,  74.95)    0.85                31
 03/19/2017   03:41:39   (  79.56,  21.86) 03/19/2017   03:41:16  (  79.55,  21.85)    0.39                23
 03/19/2017   04:31:00   ( -79.79,-168.78) 03/19/2017   04:31:54  ( -79.80,-168.67)    2.22                54
 03/21/2017   19:11:14   ( -72.41, -54.77) 03/21/2017   19:10:01  ( -72.73, -56.84)   77.71                73
 03/21/2017   19:58:06   (  79.65, 138.38) 03/21/2017   19:58:06  (  79.65, 138.46)    1.51                 0
 03/24/2017   11:25:14   ( -79.48,  85.47) 03/24/2017   11:24:20  ( -79.49,  85.54)    1.53                54
 03/24/2017   12:14:35   (  79.66,-105.66) 03/24/2017   12:14:59  (  79.65,-105.78)    2.52                24
 03/27/2017   03:41:42   ( -79.49,-158.61) 03/27/2017   03:41:12  ( -79.49,-158.69)    1.76                30