Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 7 30.  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)
 07/30/2021   19:08:20   (  79.45, 149.35) 07/30/2021   19:08:06  (  79.45, 149.43)    1.54                14
 07/30/2021   19:57:41   ( -79.68, -41.37) 07/30/2021   19:58:44  ( -79.69, -41.25)    2.59                63
 08/02/2021   10:35:28   ( -79.26,  96.31) 08/02/2021   10:34:24  ( -79.26,  96.39)    1.80                64
 08/02/2021   11:24:47   (  79.52, -94.31) 08/02/2021   11:25:01  (  79.52, -94.29)    0.39                14
 08/05/2021   02:51:55   ( -79.32,-147.38) 08/05/2021   02:51:19  ( -79.33,-147.35)    0.91                36
 08/05/2021   03:41:14   (  79.58,  22.00) 08/05/2021   03:41:56  (  79.58,  21.98)    0.49                42
 08/07/2021   19:08:20   ( -79.42, -30.85) 08/07/2021   19:08:12  ( -79.42, -30.83)    0.46                 8
 08/07/2021   19:57:40   (  79.63, 138.29) 08/07/2021   19:58:50  (  79.63, 138.25)    0.80                70
 08/10/2021   10:35:26   (  79.23, -83.88) 08/10/2021   10:34:29  (  79.23, -83.89)    0.24                57