Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 5 5.  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)
 05/06/2017   03:41:29   (  79.42,  20.81) 05/06/2017   03:41:22  (  79.42,  20.76)    1.10                 7
 05/06/2017   04:30:49   ( -79.68,-169.71) 05/06/2017   04:31:59  ( -79.69,-169.62)    1.96                70
 05/08/2017   19:08:37   ( -79.25, -32.07) 05/08/2017   19:07:38  ( -79.25, -32.09)    0.46                59
 05/08/2017   19:57:55   (  79.56, 137.65) 05/08/2017   19:58:13  (  79.56, 137.75)    2.25                18
 05/11/2017   11:25:02   ( -79.39,  84.73) 05/11/2017   11:24:28  ( -79.40,  84.86)    2.74                34
 05/11/2017   12:14:23   (  79.58,-106.32) 05/11/2017   12:15:07  (  79.58,-106.35)    0.73                44
 05/14/2017   03:41:31   ( -79.42,-159.24) 05/14/2017   03:41:23  ( -79.41,-159.25)    0.35                 8
 05/14/2017   04:30:49   (  79.71,  10.51) 05/14/2017   04:31:58  (  79.72,  10.66)    2.90                69
 05/16/2017   19:08:38   (  79.23, 147.81) 05/16/2017   19:07:38  (  79.24, 147.86)    1.07                60