Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 9 17.  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   ( -79.26,  96.30) 09/19/2021   10:34:48  ( -79.26,  96.33)    0.58                53
 09/19/2021   11:24:59   (  79.56, -94.03) 09/19/2021   11:25:23  (  79.57, -93.88)    3.15                24
 09/22/2021   02:52:10   ( -79.31,-147.50) 09/22/2021   02:51:43  ( -79.30,-147.59)    2.02                27
 09/22/2021   03:41:28   (  79.60,  22.17) 09/22/2021   03:42:18  (  79.60,  22.20)    0.63                50
 09/24/2021   19:08:35   ( -79.46, -30.57) 09/24/2021   19:08:33  ( -79.47, -30.46)    2.33                 2
 09/24/2021   19:56:31   (  81.73, 168.19) 09/24/2021   19:57:44  (  81.29, 168.73)   50.04                73
 09/27/2021   10:35:45   (  79.18, -84.21) 09/27/2021   10:34:52  (  79.17, -84.31)    2.12                53
 09/27/2021   11:25:04   ( -79.50,  85.57) 09/27/2021   11:25:28  ( -79.50,  85.60)    0.82                24
 09/30/2021   02:52:10   (  79.37,  32.89) 09/30/2021   02:51:42  (  79.38,  33.03)    3.18                28