Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 2 20.  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)
 02/20/2021   19:08:30   (  79.45, 149.41) 02/20/2021   19:07:20  (  79.45, 149.38)    0.75                70
 02/20/2021   19:57:50   ( -79.71, -41.06) 02/20/2021   19:57:57  ( -79.72, -40.99)    1.59                 7
 02/23/2021   11:24:56   (  79.57, -93.90) 02/23/2021   11:24:10  (  79.58, -93.80)    2.40                46
 02/23/2021   12:14:18   ( -79.76,  75.12) 02/23/2021   12:14:50  ( -79.75,  75.04)    1.85                32
 02/26/2021   03:41:25   (  79.60,  22.23) 02/26/2021   03:41:04  (  79.60,  22.20)    0.53                21
 02/26/2021   04:30:45   ( -79.86,-168.17) 02/26/2021   04:31:41  ( -79.87,-168.09)    1.55                56
 02/28/2021   19:08:35   ( -79.37, -31.11) 02/28/2021   19:07:21  ( -79.38, -31.14)    1.14                74
 02/28/2021   19:57:54   (  79.63, 138.33) 02/28/2021   19:57:58  (  79.63, 138.18)    3.00                 4
 03/03/2021   11:25:02   ( -79.48,  85.48) 03/03/2021   11:24:13  ( -79.47,  85.36)    2.49                49
 03/03/2021   12:14:20   (  79.77,-104.78) 03/03/2021   12:14:48  (  79.77,-104.72)    1.35                28