Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 11 19.  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   02:52:01   (  79.48,  33.70) 11/22/2017   02:51:19  (  79.47,  33.57)    2.81                42
 11/22/2017   03:41:21   ( -79.75,-156.70) 11/22/2017   03:41:56  ( -79.75,-156.74)    0.84                35
 11/24/2017   19:08:28   (  79.56, 150.15) 11/24/2017   19:08:11  (  79.55, 150.01)    3.07                17
 11/24/2017   19:57:48   ( -79.83, -40.21) 11/24/2017   19:58:48  ( -79.82, -40.24)    0.84                60
 11/27/2017   10:35:34   ( -79.46,  97.69) 11/27/2017   10:34:24  ( -79.46,  97.73)    0.92                70
 11/27/2017   11:24:55   (  79.63, -93.43) 11/27/2017   11:25:03  (  79.63, -93.55)    2.54                 8
 11/30/2017   02:51:59   ( -79.57,-145.68) 11/30/2017   02:51:14  ( -79.57,-145.56)    2.41                45
 11/30/2017   03:41:20   (  79.74,  23.23) 11/30/2017   03:41:53  (  79.74,  23.17)    1.21                33
 12/02/2017   19:08:27   ( -79.59, -29.61) 12/02/2017   19:08:08  ( -79.59, -29.69)    1.66                19