Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 11 21.  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)
 11/22/2017   02:52:02   (  79.46,  33.58) 11/22/2017   02:51:20  (  79.45,  33.45)    2.79                42
 11/22/2017   03:41:22   ( -79.73,-156.82) 11/22/2017   03:41:57  ( -79.73,-156.87)    0.85                35
 11/24/2017   19:08:28   (  79.54, 150.03) 11/24/2017   19:08:11  (  79.54, 149.89)    3.07                17
 11/24/2017   19:57:48   ( -79.81, -40.34) 11/24/2017   19:58:48  ( -79.81, -40.38)    0.83                60
 11/27/2017   10:35:34   ( -79.44,  97.57) 11/27/2017   10:34:24  ( -79.44,  97.60)    0.88                70
 11/27/2017   11:24:54   (  79.65, -93.28) 11/27/2017   11:25:02  (  79.65, -93.40)    2.58                 8
 11/30/2017   02:51:59   ( -79.59,-145.54) 11/30/2017   02:51:14  ( -79.59,-145.43)    2.32                45
 11/30/2017   03:41:20   (  79.76,  23.37) 11/30/2017   03:41:53  (  79.75,  23.31)    1.31                33
 12/02/2017   19:08:28   ( -79.57, -29.74) 12/02/2017   19:08:09  ( -79.57, -29.83)    1.83                19