Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 12 23.  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)
 12/24/2018   10:35:31   (  79.43, -82.48) 12/24/2018   10:34:19  (  79.44, -82.44)    0.87                72
 12/24/2018   11:24:52   ( -79.66,  86.74) 12/24/2018   11:24:58  ( -79.65,  86.69)    1.12                 6
 12/27/2018   02:52:00   (  79.43,  33.38) 12/27/2018   02:51:13  (  79.42,  33.24)    2.78                47
 12/27/2018   03:41:18   ( -79.77,-156.57) 12/27/2018   03:41:48  ( -79.77,-156.49)    1.63                30
 12/29/2018   19:08:26   (  79.58, 150.26) 12/29/2018   19:08:03  (  79.58, 150.28)    0.50                23
 12/29/2018   19:57:47   ( -79.80, -40.45) 12/29/2018   19:58:42  ( -79.79, -40.52)    1.63                55
 01/01/2019   10:36:35   ( -76.79,  84.62) 01/01/2019   10:35:21  ( -76.97,  83.66)   31.86                74
 01/01/2019   11:24:54   (  79.64, -93.40) 01/01/2019   11:24:56  (  79.63, -93.51)    2.28                 2
 01/04/2019   02:52:01   ( -79.52,-146.04) 01/04/2019   02:51:10  ( -79.52,-146.01)    0.51                51
 01/04/2019   03:41:20   (  79.77,  23.46) 01/04/2019   03:41:46  (  79.78,  23.55)    1.90                26
 01/06/2019   19:08:29   ( -79.54, -30.01) 01/06/2019   19:08:03  ( -79.54, -30.09)    1.57                26