Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 12 9.  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)
 12/11/2021   02:02:37   (  79.28,  44.73) 12/11/2021   02:01:30  (  79.27,  44.60)    2.91                67
 12/11/2021   02:51:57   ( -79.55,-145.77) 12/11/2021   02:52:07  ( -79.55,-145.87)    2.18                10
 12/13/2021   18:19:02   (  79.47, 161.85) 12/13/2021   18:18:16  (  79.48, 161.99)    3.07                46
 12/13/2021   19:08:25   ( -79.63, -29.39) 12/13/2021   19:08:57  ( -79.62, -29.51)    2.54                32
 12/16/2021   10:35:32   (  79.45, -82.36) 12/16/2021   10:35:09  (  79.44, -82.49)    2.87                23
 12/16/2021   11:24:53   ( -79.69,  86.95) 12/16/2021   11:25:47  ( -79.68,  86.85)    2.06                54
 12/19/2021   02:51:58   (  79.55,  34.16) 12/19/2021   02:51:57  (  79.54,  34.09)    1.62                 1
 12/19/2021   03:40:03   ( -81.68,-129.99) 12/19/2021   03:41:17  ( -81.29,-129.63)   43.54                74
 12/21/2021   18:19:04   ( -79.45, -18.23) 12/21/2021   18:18:07  ( -79.46, -18.09)    2.86                57