Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2019 12 16.  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)
 12/19/2019   11:24:59   (  79.54, -94.18) 12/19/2019   11:24:24  (  79.54, -94.17)    0.19                35
 12/19/2019   12:14:19   ( -79.80,  75.38) 12/19/2019   12:15:01  ( -79.81,  75.53)    3.14                42
 12/22/2019   03:41:24   (  79.67,  22.68) 12/22/2019   03:41:13  (  79.68,  22.82)    2.93                11
 12/22/2019   04:30:47   ( -79.82,-168.54) 12/22/2019   04:31:54  ( -79.82,-168.57)    0.44                67
 12/24/2019   19:08:33   ( -79.40, -31.02) 12/24/2019   19:07:30  ( -79.39, -31.14)    2.52                63
 12/24/2019   19:57:51   (  79.69, 138.69) 12/24/2019   19:58:05  (  79.69, 138.68)    0.24                14
 12/27/2019   11:24:57   ( -79.57,  86.02) 12/27/2019   11:24:18  ( -79.57,  86.08)    1.18                39
 12/27/2019   12:14:19   (  79.71,-105.32) 12/27/2019   12:14:58  (  79.70,-105.46)    2.91                39
 12/30/2019   03:41:24   ( -79.61,-157.75) 12/30/2019   03:41:10  ( -79.61,-157.79)    1.04                14