Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 12 5.  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)
 12/05/2021   18:19:00   ( -79.46, -18.21) 12/05/2021   18:18:26  ( -79.46, -18.16)    0.90                34
 12/05/2021   19:08:20   (  79.68, 151.02) 12/05/2021   19:09:04  (  79.67, 150.95)    1.52                44
 12/08/2021   10:35:29   ( -79.51,  98.00) 12/08/2021   10:35:17  ( -79.50,  97.96)    1.06                12
 12/08/2021   11:24:47   (  79.80, -92.22) 12/08/2021   11:25:52  (  79.81, -92.07)    3.07                65
 12/11/2021   02:02:37   (  79.27,  44.64) 12/11/2021   02:01:30  (  79.26,  44.52)    2.60                67
 12/11/2021   02:51:57   ( -79.55,-145.84) 12/11/2021   02:52:07  ( -79.54,-145.94)    1.92                10
 12/13/2021   18:19:04   (  79.37, 161.22) 12/13/2021   18:18:19  (  79.37, 161.11)    2.42                45
 12/13/2021   19:08:24   ( -79.65, -29.21) 12/13/2021   19:08:56  ( -79.64, -29.29)    1.68                32
 12/16/2021   10:35:31   (  79.47, -82.24) 12/16/2021   10:35:08  (  79.47, -82.30)    1.16                23
 12/16/2021   11:24:51   ( -79.74,  87.37) 12/16/2021   11:25:45  ( -79.74,  87.36)    0.41                54