Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 9 23.  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)
 09/24/2021   19:08:36   ( -79.44, -30.70) 09/24/2021   19:08:34  ( -79.45, -30.58)    2.48                 2
 09/24/2021   19:56:31   (  81.74, 168.46) 09/24/2021   19:57:44  (  81.29, 168.98)   50.40                73
 09/27/2021   10:35:44   (  79.20, -84.06) 09/27/2021   10:34:51  (  79.19, -84.14)    1.90                53
 09/27/2021   11:25:03   ( -79.52,  85.69) 09/27/2021   11:25:27  ( -79.52,  85.75)    1.12                24
 09/30/2021   02:52:12   (  79.27,  32.26) 09/30/2021   02:51:45  (  79.26,  32.14)    2.72                27
 09/30/2021   03:41:31   ( -79.59,-157.95) 09/30/2021   03:42:21  ( -79.59,-157.93)    0.37                50
 10/02/2021   19:08:39   (  79.37, 148.81) 10/02/2021   19:08:38  (  79.36, 148.68)    2.95                 1
 10/02/2021   19:56:36   ( -81.71, -12.73) 10/02/2021   19:57:50  ( -81.28, -12.43)   48.42                74
 10/05/2021   10:35:46   ( -79.25,  96.24) 10/05/2021   10:34:53  ( -79.25,  96.31)    1.48                53