Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 9 23.  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)
 09/24/2018   19:08:35   (  79.23, 147.79) 09/24/2018   19:08:19  (  79.23, 147.86)    1.72                16
 09/24/2018   19:57:57   ( -79.43, -43.27) 09/24/2018   19:58:59  ( -79.42, -43.38)    2.64                62
 09/27/2018   10:35:45   ( -78.95,  94.34) 09/27/2018   10:34:39  ( -78.95,  94.29)    0.96                66
 09/27/2018   11:25:01   (  79.34, -95.62) 09/27/2018   11:25:12  (  79.35, -95.48)    2.95                11
 09/30/2018   02:52:09   ( -79.10,-148.86) 09/30/2018   02:51:30  ( -79.10,-148.86)    0.22                39
 09/30/2018   03:41:29   (  79.33,  20.20) 09/30/2018   03:42:08  (  79.32,  20.11)    2.01                39
 10/02/2018   19:08:35   ( -79.21, -32.30) 10/02/2018   19:08:23  ( -79.22, -32.24)    1.19                12
 10/02/2018   19:57:54   (  79.47, 137.03) 10/02/2018   19:59:00  (  79.47, 137.02)    0.44                66
 10/05/2018   10:35:41   (  79.02, -85.24) 10/05/2018   10:34:39  (  79.03, -85.14)    2.30                62