Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 1 22.  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)
 01/22/2021   11:24:54   (  79.50, -94.39) 01/22/2021   11:24:14  (  79.49, -94.51)    2.55                40
 01/22/2021   12:14:14   ( -79.77,  75.18) 01/22/2021   12:14:51  ( -79.77,  75.20)    0.54                37
 01/25/2021   03:41:19   (  79.66,  22.61) 01/25/2021   03:41:04  (  79.66,  22.72)    2.32                15
 01/25/2021   04:30:42   ( -79.81,-168.60) 01/25/2021   04:31:45  ( -79.81,-168.65)    1.01                63
 01/27/2021   19:08:29   ( -79.41, -30.93) 01/27/2021   19:07:23  ( -79.40, -31.00)    1.46                66
 01/27/2021   19:57:47   (  79.70, 138.78) 01/27/2021   19:57:58  (  79.70, 138.83)    1.17                11
 01/30/2021   11:24:56   ( -79.48,  85.48) 01/30/2021   11:24:16  ( -79.48,  85.36)    2.35                40
 01/30/2021   12:14:14   (  79.77,-104.80) 01/30/2021   12:14:51  (  79.77,-104.78)    0.36                37
 02/02/2021   03:41:21   ( -79.59,-157.88) 02/02/2021   03:41:07  ( -79.58,-158.01)    2.88                14
 02/02/2021   04:30:40   (  79.84,  11.60) 02/02/2021   04:31:43  (  79.84,  11.60)    0.07                63
 02/04/2021   19:08:26   (  79.45, 149.41) 02/04/2021   19:07:20  (  79.46, 149.43)    0.58                66