Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 5 15.  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)
 05/17/2021   03:41:25   (  79.42,  20.82) 05/17/2021   03:41:01  (  79.42,  20.85)    0.73                24
 05/17/2021   04:30:47   ( -79.61,-170.17) 05/17/2021   04:31:41  ( -79.61,-170.30)    2.92                54
 05/19/2021   19:08:33   ( -79.22, -32.23) 05/19/2021   19:07:20  ( -79.22, -32.26)    0.75                73
 05/19/2021   19:57:50   (  79.56, 137.67) 05/19/2021   19:57:54  (  79.56, 137.77)    2.31                 4
 05/22/2021   11:24:58   ( -79.36,  84.56) 05/22/2021   11:24:13  ( -79.37,  84.62)    1.34                45
 05/22/2021   12:14:18   (  79.58,-106.31) 05/22/2021   12:14:51  (  79.57,-106.40)    2.02                33
 05/25/2021   03:41:24   ( -79.42,-159.18) 05/25/2021   03:41:08  ( -79.41,-159.29)    2.53                16
 05/25/2021   04:30:42   (  79.70,  10.50) 05/25/2021   04:31:43  (  79.70,  10.53)    0.64                61
 05/27/2021   19:08:30   (  79.22, 147.77) 05/27/2021   19:07:25  (  79.21, 147.66)    2.46                65