Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 7 19.  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)
 07/20/2021   02:51:55   ( -79.31,-147.45) 07/20/2021   02:51:08  ( -79.31,-147.43)    0.34                47
 07/20/2021   03:41:15   (  79.54,  21.73) 07/20/2021   03:41:46  (  79.53,  21.65)    1.83                31
 07/22/2021   19:08:21   ( -79.44, -30.71) 07/22/2021   19:08:01  ( -79.45, -30.57)    3.06                20
 07/22/2021   19:57:41   (  79.66, 138.48) 07/22/2021   19:58:39  (  79.66, 138.55)    1.28                58
 07/25/2021   10:35:30   (  79.17, -84.26) 07/25/2021   10:34:21  (  79.17, -84.31)    1.13                69
 07/25/2021   11:24:49   ( -79.49,  85.50) 07/25/2021   11:24:57  ( -79.49,  85.49)    0.24                 8
 07/28/2021   02:51:54   (  79.37,  32.91) 07/28/2021   02:51:12  (  79.37,  33.03)    2.57                42
 07/28/2021   03:41:17   ( -79.53,-158.32) 07/28/2021   03:41:53  ( -79.52,-158.45)    2.95                36
 07/30/2021   19:08:21   (  79.41, 149.05) 07/30/2021   19:08:07  (  79.41, 149.06)    0.23                14