Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2019 12 20.  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)
 12/22/2019   03:41:24   (  79.67,  22.69) 12/22/2019   03:41:13  (  79.68,  22.83)    2.90                11
 12/22/2019   04:30:47   ( -79.82,-168.56) 12/22/2019   04:31:54  ( -79.82,-168.58)    0.40                67
 12/24/2019   19:08:33   ( -79.40, -31.03) 12/24/2019   19:07:30  ( -79.39, -31.15)    2.51                63
 12/24/2019   19:57:51   (  79.69, 138.70) 12/24/2019   19:58:05  (  79.69, 138.69)    0.29                14
 12/27/2019   11:24:57   ( -79.56,  86.01) 12/27/2019   11:24:18  ( -79.56,  86.06)    1.11                39
 12/27/2019   12:14:19   (  79.71,-105.31) 12/27/2019   12:14:58  (  79.70,-105.46)    3.02                39
 12/30/2019   03:41:24   ( -79.61,-157.76) 12/30/2019   03:41:10  ( -79.61,-157.81)    1.24                14
 12/30/2019   04:30:43   (  79.86,  11.76) 12/30/2019   04:31:46  (  79.86,  11.81)    1.15                63
 01/01/2020   19:08:29   (  79.46, 149.41) 01/01/2020   19:07:22  (  79.46, 149.42)    0.22                67