Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 8 25.  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)
 08/26/2021   10:35:29   (  79.28, -83.54) 08/26/2021   10:34:36  (  79.29, -83.45)    2.26                53
 08/26/2021   11:24:51   ( -79.48,  85.45) 08/26/2021   11:25:16  ( -79.47,  85.33)    2.74                25
 08/29/2021   02:51:58   (  79.28,  32.34) 08/29/2021   02:51:33  (  79.27,  32.20)    3.06                25
 08/29/2021   03:41:18   ( -79.56,-158.12) 08/29/2021   03:42:10  ( -79.56,-158.20)    1.55                52
 08/31/2021   18:20:21   ( -75.71, -34.76) 08/31/2021   18:19:07  ( -75.93, -35.90)   39.53                74
 08/31/2021   19:08:24   (  79.39, 148.96) 08/31/2021   19:08:26  (  79.39, 148.88)    1.68                 2
 09/03/2021   10:35:28   ( -79.32,  96.75) 09/03/2021   10:34:39  ( -79.33,  96.87)    2.46                49
 09/03/2021   11:24:48   (  79.54, -94.16) 09/03/2021   11:25:17  (  79.54, -94.15)    0.20                29
 09/06/2021   02:51:57   ( -79.32,-147.42) 09/06/2021   02:51:36  ( -79.31,-147.51)    1.84                21