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   (  79.66,  22.58) 12/22/2019   03:41:13  (  79.67,  22.72)    3.03                11
 12/22/2019   04:30:46   ( -79.84,-168.39) 12/22/2019   04:31:53  ( -79.84,-168.40)    0.41                67
 12/24/2019   19:08:33   ( -79.42, -30.88) 12/24/2019   19:07:30  ( -79.41, -30.98)    2.22                63
 12/24/2019   19:57:52   (  79.68, 138.58) 12/24/2019   19:58:06  (  79.68, 138.58)    0.28                14
 12/27/2019   11:24:56   ( -79.58,  86.14) 12/27/2019   11:24:17  ( -79.58,  86.23)    1.79                39
 12/27/2019   12:14:18   (  79.72,-105.18) 12/27/2019   12:14:57  (  79.72,-105.29)    2.29                39
 12/30/2019   03:41:23   ( -79.63,-157.64) 12/30/2019   03:41:09  ( -79.63,-157.64)    0.21                14
 12/30/2019   04:30:42   (  79.87,  11.87) 12/30/2019   04:31:45  (  79.88,  11.99)    2.39                63
 01/01/2020   19:08:28   (  79.47, 149.48) 01/01/2020   19:07:21  (  79.48, 149.57)    2.07                67