Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 6 28.  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)
 06/28/2021   19:08:21   (  79.40, 149.01) 06/28/2021   19:07:44  (  79.41, 149.13)    2.54                37
 06/28/2021   19:57:43   ( -79.59, -42.02) 06/28/2021   19:58:24  ( -79.59, -42.07)    1.15                41
 07/01/2021   11:24:50   (  79.40, -95.15) 07/01/2021   11:24:42  (  79.39, -95.28)    2.76                 8
 07/01/2021   12:14:10   ( -79.66,  74.37) 07/01/2021   12:15:19  ( -79.66,  74.35)    0.27                69
 07/04/2021   02:51:55   ( -79.31,-147.46) 07/04/2021   02:50:57  ( -79.32,-147.39)    1.48                58
 07/04/2021   03:41:16   (  79.50,  21.43) 07/04/2021   03:41:36  (  79.50,  21.37)    1.33                20
 07/06/2021   19:08:20   ( -79.41, -30.90) 07/06/2021   19:07:50  ( -79.42, -30.77)    2.95                30
 07/06/2021   19:57:40   (  79.63, 138.26) 07/06/2021   19:58:28  (  79.63, 138.29)    0.50                48
 07/09/2021   11:24:48   ( -79.43,  85.11) 07/09/2021   11:24:47  ( -79.43,  85.04)    1.59                 1