Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 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)
 11/22/2018   10:35:30   (  79.32, -83.28) 11/22/2018   10:34:26  (  79.31, -83.40)    2.64                64
 11/22/2018   11:24:49   ( -79.63,  86.49) 11/22/2018   11:25:02  ( -79.63,  86.45)    0.84                13
 11/25/2018   02:51:54   (  79.49,  33.70) 11/25/2018   02:51:15  (  79.49,  33.75)    0.99                39
 11/25/2018   03:41:13   ( -79.79,-156.46) 11/25/2018   03:41:51  ( -79.79,-156.30)    3.11                38
 11/27/2018   19:08:21   (  79.57, 150.15) 11/27/2018   19:08:08  (  79.56, 150.10)    1.29                13
 11/27/2018   19:57:41   ( -79.83, -40.25) 11/27/2018   19:58:45  ( -79.83, -40.19)    1.25                64
 11/30/2018   10:35:28   ( -79.42,  97.40) 11/30/2018   10:34:23  ( -79.42,  97.43)    0.73                65
 11/30/2018   11:24:49   (  79.60, -93.69) 11/30/2018   11:25:02  (  79.60, -93.83)    2.93                13
 12/03/2018   02:51:55   ( -79.50,-146.23) 12/03/2018   02:51:16  ( -79.49,-146.23)    0.11                39
 12/03/2018   03:41:13   (  79.78,  23.52) 12/03/2018   03:41:51  (  79.79,  23.64)    2.42                38
 12/05/2018   19:08:21   ( -79.56, -29.87) 12/05/2018   19:08:08  ( -79.56, -29.90)    0.43                13