Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 6 27.  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   (  79.39, 148.93) 06/28/2021   19:07:44  (  79.40, 149.05)    2.68                37
 06/28/2021   19:57:43   ( -79.58, -42.10) 06/28/2021   19:58:24  ( -79.58, -42.14)    1.01                41
 07/01/2021   11:24:50   (  79.38, -95.24) 07/01/2021   11:24:42  (  79.38, -95.35)    2.43                 8
 07/01/2021   12:14:09   ( -79.69,  74.56) 07/01/2021   12:15:18  ( -79.69,  74.57)    0.23                69
 07/04/2021   02:51:55   ( -79.30,-147.54) 07/04/2021   02:50:57  ( -79.31,-147.44)    2.09                58
 07/04/2021   03:41:15   (  79.52,  21.61) 07/04/2021   03:41:35  (  79.52,  21.58)    0.67                20
 07/06/2021   19:08:23   ( -79.33, -31.49) 07/06/2021   19:07:54  ( -79.32, -31.60)    2.37                29
 07/06/2021   19:57:41   (  79.62, 138.17) 07/06/2021   19:58:29  (  79.63, 138.24)    1.55                48
 07/09/2021   11:24:47   ( -79.46,  85.29) 07/09/2021   11:24:46  ( -79.46,  85.29)    0.01                 1