Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 9 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)
 09/19/2021   10:35:41   ( -79.25,  96.27) 09/19/2021   10:34:48  ( -79.25,  96.30)    0.62                53
 09/19/2021   11:24:59   (  79.55, -94.05) 09/19/2021   11:25:23  (  79.56, -93.90)    3.12                24
 09/22/2021   02:52:10   ( -79.30,-147.54) 09/22/2021   02:51:43  ( -79.29,-147.62)    1.97                27
 09/22/2021   03:41:28   (  79.60,  22.15) 09/22/2021   03:42:18  (  79.60,  22.18)    0.58                50
 09/24/2021   19:08:35   ( -79.46, -30.60) 09/24/2021   19:08:33  ( -79.46, -30.49)    2.37                 2
 09/24/2021   19:56:30   (  81.74, 168.57) 09/24/2021   19:57:43  (  81.29, 169.09)   50.55                73
 09/27/2021   10:35:45   (  79.17, -84.23) 09/27/2021   10:34:52  (  79.17, -84.32)    2.09                53
 09/27/2021   11:25:04   ( -79.50,  85.54) 09/27/2021   11:25:28  ( -79.50,  85.58)    0.90                24
 09/30/2021   02:52:13   (  79.25,  32.11) 09/30/2021   02:51:46  (  79.24,  31.97)    3.13                27
 09/30/2021   03:41:32   ( -79.57,-158.09) 09/30/2021   03:42:22  ( -79.57,-158.09)    0.11                50
 10/02/2021   19:08:37   (  79.47, 149.46) 10/02/2021   19:08:35  (  79.47, 149.59)    2.77                 2