Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 12 27.  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)
 12/29/2018   19:08:26   (  79.59, 150.33) 12/29/2018   19:08:03  (  79.58, 150.33)    0.11                23
 12/29/2018   19:57:48   ( -79.77, -40.67) 12/29/2018   19:58:43  ( -79.76, -40.77)    2.07                55
 01/01/2019   10:36:42   ( -76.47,  83.51) 01/01/2019   10:35:28  ( -76.67,  82.46)   35.37                74
 01/01/2019   11:24:52   (  79.72, -92.77) 01/01/2019   11:24:53  (  79.73, -92.61)    3.18                 1
 01/04/2019   02:52:01   ( -79.49,-146.21) 01/04/2019   02:51:10  ( -79.49,-146.26)    1.06                51
 01/04/2019   03:41:20   (  79.75,  23.29) 01/04/2019   03:41:46  (  79.75,  23.31)    0.36                26
 01/06/2019   19:08:27   ( -79.63, -29.37) 01/06/2019   19:08:00  ( -79.63, -29.25)    2.53                27
 01/06/2019   19:57:49   (  79.77, 139.33) 01/06/2019   19:58:40  (  79.76, 139.22)    2.23                51
 01/09/2019   11:24:56   ( -79.65,  86.66) 01/09/2019   11:24:54  ( -79.65,  86.65)    0.20                 2