Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2019 9 8.  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)
 09/09/2019   02:51:55   (  79.22,  31.90) 09/09/2019   02:51:19  (  79.22,  31.93)    0.64                36
 09/09/2019   03:41:16   ( -79.45,-158.90) 09/09/2019   03:41:58  ( -79.45,-159.01)    2.32                42
 09/11/2019   19:08:20   (  79.35, 148.65) 09/11/2019   19:08:10  (  79.36, 148.79)    3.14                10
 09/11/2019   19:57:42   ( -79.55, -42.36) 09/11/2019   19:58:50  ( -79.55, -42.37)    0.26                68
 09/14/2019   10:35:30   ( -79.06,  95.05) 09/14/2019   10:34:30  ( -79.05,  94.93)    2.63                60
 09/14/2019   11:24:47   (  79.40, -95.12) 09/14/2019   11:25:04  (  79.40, -95.14)    0.34                17
 09/17/2019   02:51:54   ( -79.23,-148.02) 09/17/2019   02:51:20  ( -79.23,-147.99)    0.48                34
 09/17/2019   03:41:12   (  79.53,  21.60) 09/17/2019   03:41:55  (  79.54,  21.75)    3.10                43
 09/19/2019   19:08:20   ( -79.28, -31.83) 09/19/2019   19:08:13  ( -79.27, -31.94)    2.36                 7