Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 11 18.  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)
 11/19/2017   10:35:35   (  79.38, -82.83) 11/19/2017   10:34:28  (  79.38, -82.91)    1.72                67
 11/19/2017   11:24:54   ( -79.70,  87.01) 11/19/2017   11:25:04  ( -79.69,  87.01)    0.27                10
 11/22/2017   02:52:01   (  79.47,  33.65) 11/22/2017   02:51:19  (  79.46,  33.53)    2.70                42
 11/22/2017   03:41:21   ( -79.74,-156.74) 11/22/2017   03:41:56  ( -79.74,-156.77)    0.74                35
 11/24/2017   19:08:28   (  79.55, 150.10) 11/24/2017   19:08:11  (  79.54, 149.96)    2.84                17
 11/24/2017   19:57:48   ( -79.82, -40.26) 11/24/2017   19:58:48  ( -79.82, -40.29)    0.58                60
 11/27/2017   10:35:34   ( -79.45,  97.63) 11/27/2017   10:34:24  ( -79.46,  97.69)    1.35                70
 11/27/2017   11:24:54   (  79.66, -93.23) 11/27/2017   11:25:02  (  79.66, -93.32)    2.12                 8
 11/30/2017   02:51:59   ( -79.59,-145.49) 11/30/2017   02:51:14  ( -79.60,-145.34)    3.10                45
 11/30/2017   03:41:20   (  79.76,  23.42) 11/30/2017   03:41:53  (  79.76,  23.39)    0.53                33
 12/02/2017   19:08:26   ( -79.62, -29.44) 12/02/2017   19:08:07  ( -79.61, -29.47)    0.66                19