Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 4 8.  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)
 04/09/2021   19:58:00   ( -79.53, -42.55) 04/09/2021   19:57:49  ( -79.53, -42.49)    1.20                11
 04/09/2021   20:47:21   (  79.71, 126.40) 04/09/2021   20:48:28  (  79.71, 126.37)    0.66                67
 04/12/2021   11:25:05   (  79.35, -95.56) 04/12/2021   11:24:02  (  79.36, -95.46)    2.09                63
 04/12/2021   12:14:25   ( -79.63,  73.99) 04/12/2021   12:14:39  ( -79.63,  74.13)    3.02                14
 04/15/2021   03:41:33   (  79.36,  20.40) 04/15/2021   03:40:56  (  79.36,  20.30)    2.05                37
 04/15/2021   04:30:53   ( -79.64,-170.04) 04/15/2021   04:31:33  ( -79.63,-170.09)    1.06                40
 04/17/2021   19:57:58   (  79.48, 137.10) 04/17/2021   19:57:46  (  79.49, 137.12)    0.74                12
 04/17/2021   20:47:18   ( -79.76, -53.28) 04/17/2021   20:48:23  ( -79.76, -53.19)    1.80                65
 04/20/2021   11:25:05   ( -79.31,  84.17) 04/20/2021   11:24:01  ( -79.31,  84.16)    0.48                64