Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 4 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)
 04/12/2017   03:41:42   ( -79.46,-158.94) 04/12/2017   03:41:16  ( -79.47,-158.80)    2.88                26
 04/12/2017   04:31:04   (  79.61,   9.72) 04/12/2017   04:31:56  (  79.61,   9.66)    1.17                52
 04/14/2017   19:09:59   (  76.10, 133.96) 04/14/2017   19:08:46  (  76.27, 132.76)   37.50                73
 04/14/2017   19:58:09   ( -79.50, -42.79) 04/14/2017   19:58:11  ( -79.51, -42.75)    0.71                 2
 04/17/2017   11:25:12   (  79.37, -95.42) 04/17/2017   11:24:24  (  79.38, -95.32)    2.28                48
 04/17/2017   12:14:34   ( -79.57,  73.59) 04/17/2017   12:15:04  ( -79.57,  73.56)    0.73                30
 04/20/2017   03:41:38   (  79.44,  20.90) 04/20/2017   03:41:18  (  79.44,  20.97)    1.65                20
 04/20/2017   04:31:00   ( -79.64,-170.07) 04/20/2017   04:31:58  ( -79.63,-170.13)    1.32                58
 04/22/2017   19:08:46   ( -79.20, -32.42) 04/22/2017   19:07:37  ( -79.20, -32.45)    0.69                69