Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 10 6.  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)
 10/08/2018   02:51:59   (  79.39,  33.02) 10/08/2018   02:51:20  (  79.39,  32.99)    0.76                39
 10/08/2018   03:41:19   ( -79.67,-157.42) 10/08/2018   03:41:57  ( -79.67,-157.43)    0.35                38
 10/10/2018   19:08:24   (  79.52, 149.76) 10/10/2018   19:08:11  (  79.52, 149.80)    0.80                13
 10/10/2018   19:57:45   ( -79.76, -40.89) 10/10/2018   19:58:49  ( -79.76, -40.84)    0.93                64
 10/13/2018   10:35:33   ( -79.28,  96.36) 10/13/2018   10:34:29  ( -79.27,  96.23)    2.94                64
 10/13/2018   11:24:49   (  79.64, -93.50) 10/13/2018   11:25:02  (  79.65, -93.37)    2.78                13
 10/16/2018   02:51:57   ( -79.44,-146.70) 10/16/2018   02:51:19  ( -79.43,-146.73)    0.89                38
 10/16/2018   03:41:16   (  79.68,  22.68) 10/16/2018   03:41:56  (  79.68,  22.62)    1.24                40
 10/18/2018   19:08:21   ( -79.55, -30.01) 10/18/2018   19:08:09  ( -79.56, -29.93)    1.74                12