Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2019 12 18.  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   (  79.53, -94.23) 12/19/2019   11:24:24  (  79.53, -94.23)    0.10                35
 12/19/2019   12:14:18   ( -79.83,  75.59) 12/19/2019   12:15:00  ( -79.83,  75.75)    3.06                42
 12/22/2019   03:41:24   (  79.67,  22.62) 12/22/2019   03:41:13  (  79.67,  22.75)    2.65                11
 12/22/2019   04:30:47   ( -79.82,-168.61) 12/22/2019   04:31:54  ( -79.82,-168.64)    0.68                67
 12/24/2019   19:08:34   ( -79.39, -31.07) 12/24/2019   19:07:31  ( -79.38, -31.21)    2.94                63
 12/24/2019   19:57:52   (  79.68, 138.64) 12/24/2019   19:58:06  (  79.68, 138.61)    0.72                14
 12/27/2019   11:24:57   ( -79.56,  85.97) 12/27/2019   11:24:18  ( -79.56,  86.00)    0.54                39
 12/27/2019   12:14:16   (  79.81,-104.54) 12/27/2019   12:14:54  (  79.82,-104.40)    2.79                38
 12/30/2019   03:41:25   ( -79.57,-158.06) 12/30/2019   03:41:11  ( -79.57,-158.15)    2.01                14