Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 7 12.  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)
 07/14/2021   19:08:21   (  79.39, 148.95) 07/14/2021   19:07:57  (  79.39, 148.95)    0.18                24
 07/14/2021   19:57:41   ( -79.66, -41.53) 07/14/2021   19:58:34  ( -79.66, -41.45)    1.62                53
 07/17/2021   10:35:40   ( -78.78,  93.43) 07/17/2021   10:34:26  ( -78.81,  93.27)    5.39                74
 07/17/2021   11:24:47   (  79.52, -94.29) 07/17/2021   11:24:50  (  79.53, -94.17)    2.61                 3
 07/20/2021   02:51:55   ( -79.31,-147.47) 07/20/2021   02:51:08  ( -79.32,-147.42)    1.14                47
 07/20/2021   03:41:15   (  79.53,  21.66) 07/20/2021   03:41:46  (  79.53,  21.62)    0.72                31
 07/22/2021   19:08:23   ( -79.36, -31.28) 07/22/2021   19:08:04  ( -79.35, -31.37)    1.91                19
 07/22/2021   19:57:40   (  79.69, 138.65) 07/22/2021   19:58:38  (  79.69, 138.79)    2.89                58
 07/25/2021   10:35:28   (  79.23, -83.89) 07/25/2021   10:34:19  (  79.23, -83.84)    1.06                69