Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 8 21.  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)
 08/21/2021   02:51:56   ( -79.39,-146.93) 08/21/2021   02:51:26  ( -79.40,-146.83)    2.15                30
 08/21/2021   03:41:16   (  79.61,  22.24) 08/21/2021   03:42:04  (  79.61,  22.26)    0.38                48
 08/23/2021   19:08:22   ( -79.48, -30.46) 08/23/2021   19:08:19  ( -79.48, -30.34)    2.51                 3
 08/23/2021   19:56:47   (  81.31, 156.69) 08/23/2021   19:58:00  (  81.03, 157.50)   33.38                73
 08/26/2021   10:35:29   (  79.28, -83.55) 08/26/2021   10:34:36  (  79.29, -83.46)    1.93                53
 08/26/2021   11:24:49   ( -79.56,  86.00) 08/26/2021   11:25:13  ( -79.57,  86.15)    3.20                24
 08/29/2021   02:51:55   (  79.40,  33.11) 08/29/2021   02:51:29  (  79.41,  33.24)    2.81                26
 08/29/2021   03:41:18   ( -79.57,-158.09) 08/29/2021   03:42:10  ( -79.56,-158.19)    2.19                52
 08/31/2021   18:20:28   ( -75.37, -35.72) 08/31/2021   18:19:14  ( -75.61, -36.95)   43.01                74
 08/31/2021   19:08:24   (  79.40, 148.99) 08/31/2021   19:08:26  (  79.39, 148.88)    2.42                 2
 09/03/2021   10:35:29   ( -79.30,  96.57) 09/03/2021   10:34:40  ( -79.30,  96.63)    1.43                49