Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 6 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)
 07/01/2021   11:24:50   (  79.40, -95.13) 07/01/2021   11:24:42  (  79.39, -95.25)    2.52                 8
 07/01/2021   12:14:10   ( -79.66,  74.37) 07/01/2021   12:15:19  ( -79.67,  74.37)    0.22                69
 07/04/2021   02:51:55   ( -79.31,-147.45) 07/04/2021   02:50:57  ( -79.32,-147.35)    2.25                58
 07/04/2021   03:41:15   (  79.54,  21.71) 07/04/2021   03:41:35  (  79.54,  21.69)    0.60                20
 07/06/2021   19:08:22   ( -79.34, -31.41) 07/06/2021   19:07:53  ( -79.33, -31.49)    1.84                29
 07/06/2021   19:57:40   (  79.63, 138.28) 07/06/2021   19:58:28  (  79.64, 138.37)    2.07                48
 07/09/2021   11:24:47   ( -79.47,  85.37) 07/09/2021   11:24:46  ( -79.48,  85.42)    1.08                 1
 07/09/2021   12:11:45   (  81.53, -51.36) 07/09/2021   12:12:58  (  80.80, -52.78)   84.13                73
 07/12/2021   02:51:51   (  79.36,  32.85) 07/12/2021   02:51:01  (  79.37,  32.98)    2.96                50